The archer above shoots an arrow toward a target. Which object has the GREATEST kinetic energy?

The ability to do work can also be defined as-

Andrew plays a computer game where he designs roller coasters for a virtual amusement park. Each diagram below illustrates a path for the roller coaster car to travel. Which track should Andrew choose if he wants the roller coaster car to have the MOST potential energy?

Which of the following examples represents the GREATEST amount of potential energy?

Which of the following objects has potential energy?

Potential energy refers to objects that are ________________________

A mountain climber stops at a ledge halfway up a cliff wall. The climber sets up a small gas stove and begins to cook soup in a small metal bowl. Which of the following would MOST increase the kinetic energy of the bowl?

A cart carrying a brick is pulled up an inclined plane. At what point does the cart have the greatest amount of potential energy?

Compressing a spring increases its —

An orange, a grapefruit, and a watermelon all fall off a windowsill at the same time. The fruits all hit the ground at the same time because each fruit has the same —

A

B

C

D

Phillip throws a basketball up in the air and through a hoop. Because the ball is acted on by the force of gravity, the ball will _______

When a car is on an icy roadway, it is difficult to control its motion. Which statement BEST explains this phenomenon?

Three balls of equal size made from hard (solid) plastic, rubber, and stainless steel are dropped at the same time from the roof of a building that was 5 stories tall. All three objects hit the sidewalk at the same time because —

A student who was training for a cross-country race jogged for 1.0 hour and covered a distance of 1.5 kilometers. How much farther will the student travel if he jogs for one more hour?

Three balls of equal size made from hard (solid) plastic, rubber, and stainless steel are dropped at the same time from the roof of a building that was 5 stories tall. All three objects hit the sidewalk at the same time because —

Rodney hit a high fly ball over second base in a championship baseball game. Because the ball was also being acted on by the force due to gravity, the ball will —

Mr. Robbins is taking his baby for a walk in a stroller. The amount of force that Mr. Robbins must use to make the stroller move MOST likely depends on the stroller's —

What is the average speed of the car?

What is the average speed of the ball?

A toy car rolls 8 meters in 2 seconds. What is the average speed of the toy car?

A

B

C

D

. Mrs. Tucker threaded a string through a straw, blew up a balloon, and taped the balloon to the straw as shown in the diagram. When she releases air from the neck of the balloon, what will happen?

Which is the fastest segment of Kara's trip?

What is a likely explanation of Kara's motion between the second and third hour of her ride?

The graph above shows the speed at which a cyclist traveled for every hour in a 4 hour ride.

Which of the following was the average speed of the cyclist?

A city sits in the middle of a broad, flat plateau that is 800 meters above sea level. The plateau is surrounded by lower land on all sides. Which power plant would have the HARDEST time generating power if it were built on this plateau?

A hydroelectric power plant

B natural gas power plant

C nuclear power plant

D Coal power plant

Which of these types of renewable energy is the LEAST directly dependent on the sun?

A geothermal

B hydroelectric

C solar

D wind

Schools that are heated with natural gas furnaces use a type of fuel that is classified as a:

A nonrenewable alternative fuel

B nonrenewable fossil fuel

C renewable alternative fuel

D renewable fossil fuel

A new school, in a dry sunny region, is being constructed as a "green school" which means all efforts are made to make the school as environmentally friendly as possible. Which of the following would be the MOST practical way to supplement or add to the electrical power system?

A diesel powered generators outside the building

B hydroelectric power from a school pond

C nuclear power plant in the utility room

D solar panels on the roof

Which of the following resources carries a high potential for environmental damage?

A wind

B trees

C geothermal

D nuclear

A town is considering new sources of electricity. Which of the following sources of electricity would be the MOST environmentally safe choice?

A hydroelectric dam

B solar power station

C coal-fired power plant

D natural gas power plant

Which of the following energy sources is MOST likely to have a negative effect on air quality?

A coal

B geothermal

C sunlight

D wind

A paper mill uses the moving water from a nearby waterfall to turn turbines and produce energy. The waterfall is an example of a:

A solar energy source.

B renewable energy source.

C geothermal energy source.

D nonrenewable energy source.

Which of these human activities would reduce the amount of useable energy Earth receives from the Sun?

A setting up too many solar collectors in a small area

B adding smoke to the atmosphere that blocks sunlight

C using a small amount of solar cells over a very long time

D planting too many farm crops that rely on sunlight to grow

Which of these types of energy resources is MOST LIKELY to be used up by human activity?

A solar energy

B geothermal energy

C fossil fuel energy

D wind energy

Which energy transformation produces electricity without causing pollution?

A burning natural gas in a power plant to transform heat energy into electricity

B using batteries in a flashlight to transform chemical energy into electricity

C spinning windmills to transform mechanical energy into electricity

Which of these describes a human activity that uses up a non-renewable resource?

A building new roads that cause topsoil to erode

B chopping down trees from the forest for heating homes

C car engines consuming large amounts of fossil fuels

D pollutants on roads washing into streams during rainstorms

Wind power is used to pump water from the ground and generate electricity. The most likely environmental impact of using wind power is:

A the release of carbon dioxide into the atmosphere

B disturbing native plant and animal populations

C a reduction in the use of fossil fuels

Which of the following energy transformation systems would be MOST affected by changes in weather?

A geothermal power generation

B natural gas power generation

C nuclear power generation

D wind turbine power generation

A city is located near the shoreline of an ocean. The terrain for miles around the city is very flat. Which of the following electrical energy production systems would be the MOST efficient to use?

A hydroelectric power

B nuclear power

C wind power

D coal power

The solar panel a school is using averages 1.4 kilowatt hours per day. The school uses 9.2 kilowatt hours per day. How many solar panels will the school need in order to completely run on solar energy?

A 2

B 6

C 7

D 8

A school has a set of lights on a timer to make sure that they are on the same number of hours each day. Part of the energy is provided by a solar panel and the rest is paid for by the school. During which month would you expect the school to have to pay the least amount of money on electricity for the set of lights?

A -a cold, dry midwinter month

B- a rainy, warm month in autumn

C -a cold, rainy spring month

D -a hot, dry summer month

Plans for a new school are being developed. The school board would like for the new school to run on “green” energy, meaning that the energy that runs the school must not come from fossil fuels which are known pollutants. Local middle school science students have been asked to help decide which energy source should be used. Based on your knowledge of energy resources and fossil fuels, which energy resource would be most practical for the students to suggest for the new school?

A The school should utilize mostly solar energy because solar energy is inexhaustible.

B The school should utilize electrical power from a coal burning factory because that is how most electricity is produced.

C The school should utilize only geothermal energy because the earth is hot during the day when the sun is shining.

D The school should utilize only wind energy because the wind blows every day.

A new school is being built in the desert of West Texas and wants to be as energy efficient as possible. Which idea would the school most likely NOT use?

A - building solar panels of the roof of the school

B - building a hydroelectric generator to supply electricity

C -constructing wind generators near the football field

D -requiring all teachers to turn off their lights when they leave a room

Which of the following actions would reduce the greatest amount of electricity used in a home?

A -using a programmable thermostat to control the heating and air conditioning

B -starting and maintaining a compost pile to manage yard waste

C- growing or purchasing organic fruits and vegetables

D - purchasing a hybrid automobile and starting a car pool with friends

Which of these actions uses the greatest amount of energy?

A- sharpening a pencil with a hand-held sharpener

B - cooking a turkey in an electric oven

C - cooling a school building for the month of August

D - driving to the grocery store

How does recycling impact a person’s energy use?

A- Less energy is needed to recycle used aluminum cans than to mine aluminum and make new cans.

B - Less energy is used to transport the raw materials needed to make plastic than to recycle plastic bottles.

C - Making paper from trees causes a smaller amount of trash to be sent to a landfill.

D - The distance that used materials have to travel before being recycled uses more energy than it saves.

. A school replaces 60-watt incandescent light bulbs with 13-watt compact fluorescent bulbs in each classroom. If there are no other changes in how the lights are used, how will the electricity use compare, after changing the light bulbs?

A- The school will use more electricity after the change.

B- The school will create more waste than before the change to compact fluorescent light bulbs.

C- The school will use less electricity after the change.

D - The school will need more light bulbs to generate the same amount of light as before the change.

Which action in a science lab transforms electrical energy to heat energy?

A - warming liquid in a test tube over a bunsen burner

B - using a hot plate to boil a beaker of water

C - growing plants on a window sill

D - mixing two chemicals

Charles has a pinwheel like the one in the diagram. While helping his mom with dinner, he discovered that the steam produced when boiling water makes the pinwheel spin. Which energy transformation describes how the pinwheel moves?

What energy transformation produces electricity without any pollution?

A burning natural gas in a power plant to transform energy into electricity

B use batteries in a flashlight to transform chemical energy into electricity

C spinning windmills to transform mechanical energy into electricity

D capturing the energy of nuclear power to transform chemical energy into electricity

Which action in the science laboratory transforms chemical energy to heat energy?

A burning a candle

B growing potted plants near a window

C using a hot plate to boil a beaker of alcohol

D using a water heater element in a tropical fish aquarium

Energy transformation occurs when a splitting atom releases energy to heat water to produce steam. How do you describe this energy transformation?

A- chemical energy to heat energy

B- electrical energy to heat energy

C- heat energy to nuclear energy

D- nuclear energy to heat energy

Which energy transformation produces electricity with the greatest potential of environmental pollution?

A- generating electricity from a natural gas fired power plant

B- generating electricity from a nuclear power plant

C- generating electricity from a wind turbine power system

D- generating electricity from a solar panel system

A light bulb transforms electrical energy to which type of energy?

A - nuclear energy

B - thermal energy

C - chemical energy

D - mechanical energy

Which of these types of energy conversions occur in a battery-powered flashlight?

A- thermal to mechanical

B- light to electrical

C- thermal to chemical

D- chemical to electrical

Which type of energy conversion occurs when solar energy is used to warm a house?

A- electrical to light

B- light to thermal

C- chemical to electrical

D- thermal to chemical

Which type of energy transformation occurs when energy given off by splitting atoms is used to turn water into steam?

A- thermal to light

B- nuclear to thermal

C- chemical to nuclear

D- electrical to chemical

Which of the following occurs during an energy transformation?

A- energy disappears

B- new energy appears

C- energy changes form

D- matter is created from energy