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- 1. Multiple Choice
Four solid balls, each with a different mass, are moving at the same speed. Which ball would require the most force to stop its motion?
Four solid balls, each with a different mass, are moving at the same speed. Which ball would require the most force to stop its motion?
ball with a mass of 10 kg
ball with a mass of 15 kg
ball with a mass of 20 kg
- 2. Multiple Choice
Which graph represents an object that is decreasing in speed
- 3. Multiple Choice
A girl walked for 30 minutes. She noticed that she traveled farther in the first 15 minutes of her walk than in the second 15 minutes. What can she conclude about her walk?
She walked over many hills.
Her average speed was faster during the first half of her walk.
She walked in two different directions.
She was walking at a constant speed.
- 4. Multiple Choice
In which way are evaporation and condensation similar?
Both cause decreases in air temperature.
Both cause increases in air temperature.
Both are caused by the warming of the atmosphere.
Both are caused by changes in heat energy.
- 5. Multiple Choice
Which is an example of a different substance being formed?
glass breaking
metal melting
water freezing
wood burning
- 6. Multiple Choice
Which is most responsible for the uneven heating of the air in the atmosphere?
radiation
convection
conduction
condensation
- 7. Multiple Choice
A pot is heated on a stove. Which process causes the metal handle of the pot to also become hot?
combustion
convection
radiation
conduction
- 8. Multiple Choice
Which best describes why winds at the beach change direction between day and night?
because the temperatures over land and over water change
because warm air over land sinks and stays in place over land
because cool air rises and is replaced by warm air from the ocean
because cool air sinks and stays in place over land
- 9. Multiple Choice
Which will most likely result from a low-pressure weather system?
warm temperatures
cloudy conditions
clear conditions
cool temperatures
- 10. Multiple Choice
Which is the best explanation for how air masses move across the United States?
The prevailing westerlies move air masses from west to east across the United States but may be deflected by the jet stream.
The trade winds move air masses from west to east across the United States.
The jet stream moves air masses from the Pacific Ocean across the United States.
The warm air of the Gulf Stream causes air masses to move from the Atlantic Ocean to the Pacific Ocean.
- 11. Multiple Choice
Which has the greatest effect on wind speed?
precipitation
cloud cover
wind direction
air pressure
- 12. Multiple Choice
Which is an example of a single-celled organism?
amoeba
insect
fish
worm
- 13. Multiple Choice
Why do multicellular organisms need transport systems?
Most have cells that are not able to exchange gases with the outside environment.
Most have cells that are unable to grow and survive in their environment.
Most have cells that need food from sources outside their environment.
Most have cells that require more energy to survive than single-celled organisms.
- 14. Multiple Choice
Which is a function of the cardiovascular system?
to move water throughout the body
to provide structural support for the body
to eliminate waste from the body
to transport gases throughout the body
- 15. Multiple Choice
Which body system sends electrical signals to all other body systems?
circulatory system
digestive system
muscular system
nervous system
- 16. Multiple Choice
Which organism is a producer?
frog
mushroom
grass
lizard
- 17. Multiple Choice
Which is most responsible for recycling dead plants and animals in an ecosystem?
water
bacteria
fish
insects
- 18. Multiple Choice
How would the woodpecker population in a forest area most likely be affected if a housing development is built in that area?
They would produce more offspring.
They would change the color of their feathers.
They would experience a decrease in available food.
They would experience a decrease in competition.
- 19. Multiple Choice
Matt is a tall, eleven-year-old boy. He has a scar on his right cheek. He is intelligent and an excellent drummer. Which of his traits did he most likely inherit?
his height
his scar on his right cheek
his intelligence
his ability to play the drums
- 20. Multiple Choice
Which characteristic would a child not inherit from one or both of its parents?
freckles
hair style
eye color
dimples
- 21. Multiple Choice
Which best describes the speed of a ball as it is thrown straight up into the air and comes back down?
The ball goes up at a constant speed, stops, then comes down at a constant speed.
The ball goes up at a constant speed, stops, and increases speed as it comes down.
The ball goes slower and slower as it goes up, stops, and then goes faster and faster as it comes down.
The ball goes slower and slower as it goes up, stops, and then goes faster and faster as it comes down.
- 22. Multiple Choice
What can cause a moving object to increase its speed in a forward direction?
a force pushing on the object from the opposite direction
a force that continually acts on the object in the direction the object is moving
an increase in the mass of the object
a decrease in the mass of the object
- 23. Multiple Choice
A student uses a rubber band to launch the four objects shown in the table. If the student pulls the rubber band back the same amount each time, which object will most likely move the fastest when launched?
paper clip
piece of paper
eraser
rubber ball
- 24. Multiple Choice
After a rain, a puddle of water remains on a sidewalk. After a day of sunshine, the puddle is gone. Which process is most responsible for the disappearance of the puddle?
precipitation
transpiration
evaporation
condensation
- 25. Multiple Choice
If 10 grams of water are added to 5 grams of salt, how much salt water will be made?
2 grams
5 grams
10 grams
15 grams
- 26. Multiple Choice
A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change?
The mass of the balloon increases because the size of the balloon has increased.
The mass of the balloon increases because the temperature of the balloon has increased.
The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up.
The mass of the balloon stays the same because warming decreases the mass enough to cancel out the effect of increasing the size.
- 27. Multiple Choice
People sitting around a campfire are able to feel the heat from the fire. How are the people able to feel the heat from the fire without touching the fire?
The heat from the fire travels through the ground and heats the ground around the people.
The heat from the fire is conducted through air molecules to the people.
The heat from the fire rises in the air and then settles around the people.
The heat from the fire radiates from the fire to the people.
- 28. Multiple Choice
Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature?
convection
evaporation
radiation
conduction
- 29. Multiple Choice
Andy lives in the southern hemisphere. What season does he most likely experience in August?
spring
summer
winter
autumn
- 30. Multiple Choice
On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the next 24 hours. Which weather conditions will this system most likely bring to the area?
stormy
sunny
snowy
hot
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