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- 1. Multiple Choice
A ball is projected into the air. Where is potential energy the greatest?
- 2. Multiple Choice
How does the mass of a bowling ball that has been rolled down the lane affect the kinetic energy?
The kinetic energy does not depend on the mass of the bowling ball.
The kinetic energy is increasing proportional to the mass of the bowling ball.
The kinetic energy is decreasing proportional to the mass of the bowling ball.
The kinetic energy is increasing proportional to the square of the mass of the bowling ball.
- 3. Multiple Choice
Which of the following is true?
Energy is found only in living objects
Energy is a fuel
Energy is a substance or fluid
Energy is associated only with movement
Any store of energy may be transferred into another store
- 4. Multiple Choice
Which of the following is not a store of energy?
friction
magnetic
electrostatic
nuclear
- 5. Multiple Choice
Which of the following is false?
Energy is the product of an activity
Energy cannot be created or destroyed
When gravity pulls an object towards the ground, energy is transferred mechanically
A car's engine produces useful kinetic energy and wasted thermal energy
- 6. Multiple Choice
As the cyclist accelerates, the _______________________ energy store in the cyclist’s body decreases and the _______________________ energy of the cyclist increases.
chemical; kinetic
gravitational potential; kinetic
elastic potential; kinetic
kinetic; gravitational potential
kinetic; chemical
- 7. Multiple Choice
Which of the following is an example of a mechanical transfer of energy?
A battery powering a light bulb.
A candle generating heat
A candle generating light
A ball falling towards the Earth
- 8. Multiple Choice
As an electric drone accelerates upwards its __________________________ energy increases and its __________________________ energy increases.The __________________________ energy store of the battery decreases.
kinetic ; gravitational potential ; chemical
chemical ; gravitational potential ; kinetic
kinetic ; gravitational potential ; nuclear
kinetic ; elastic potential ; chemical
- 9. Multiple Choice
If a roller-coaster cart moving towards the top of a track has 40 J of kinetic energy and 30 J of gravitational potential energy, how much gravitational potential energy will it have at the top of the track?
70 J
40 J
30 J
10 J
- 10. Multiple Choice
Which of the following is an example of a system producing useful energy?
car: kinetic
iPhone: thermal
car: thermal
lightbulb: thermal
- 11. Multiple Choice
Which of the following would reduce the dissipation of energy from a house to the surroundings?
insulation
large walls
thin walls
metal walls
- 12. Multiple Choice
Dissipated energy is always
wasted energy
useful energy
thermal energy
chemical energy
- 13. Multiple Choice
The image shows a hot water tank made of copper. Copper has a higher thermal conductivity than most metals. How does the rate of energy transfer through copper compare with the rate of energy transfer through most metals?
Higher
Lower
The same
- 14. Multiple Choice
The tank is insulated. When the water is hot, the immersion heater switches off. Compared to a tank with no insulation, the rate of energy transfer from the water in an insulated tank is _____________________ . This means that the water in the insulated tank stays _____________________for longer.
lower ; hotter
higher ; hotter
lower ; colder
higher ; colder
- 15. Multiple Choice
Which of the following is shown in the image?
The ability of metals to conduct heat well due to delocalised electrons
The tendency of nonmetals to conduct heat poorly
The radiation of heat in a metal
The transfer of heat in a fluid substance
- 16. Multiple Choice
What sort of heat transfer has allowed this image to be formed?
conduction
convection
radiation
- 17. Multiple Choice
The electric kettle shown is used to boil water. Why is the total energy input to the kettle higher than the energy used to heat the water?
Energy is absorbed from the surroundings.
Energy is used to heat the kettle.
The kettle is more than 100% efficient.
- 18. Multiple Choice
The figure below shows a car with an electric motor. The car is moving along a flat road. Some energy is wasted. What happens to the wasted energy?
it is transferred into the surroundings
it is recycled by the car
it is released through the car's exhaust
- 19. Multiple Choice
A child drops a ball. The ball hits the ground and bounces. The ball and the Earth form a system. What is meant by ‘a system’?
A group of objects that interact.
Objects with big differences in mass.
Objects with gravitational potential energy.
Objects with chemical energy
- 20. Multiple Choice
A student investigated the properties of three types of insulation. In the investigation different insulating materials were placed in contact with the hot metal plate. Temperature probes measured the temperature on each side of the material. The temperature probes were connected to a data logger. The image shows how the temperature measured by the insulated temperature probe changed over 10 minutes for each of the materials. Which material is the best insulator?
A
B
C
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