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QUIZ

11th

grade

78%

accuracy

5

plays

Laurie Lewis

6 months

No student devices needed. Know more

21 questions

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- 1. Multiple Choice3 minutes1 pt
An object of 2.03 kg is thrown vertically upwards at an initial speed of 10.41 m/s. What is the kinetic energy at the moment it is thrown?

110 J

1200 J

2.03 J

10.41 J

- 2. Multiple Choice3 minutes1 pt
An object of mass 0.328 kg moves along a straight path at a constant velocity. If the kinetic energy is 14.7 J, determine the speed of the object.

12.34 m/s

0 m/s

9.47 m/s

5.16 m/s

- 3. Multiple Choice3 minutes1 pt
A 0.050 kg stone is dropped from a height of 15.67 m. What is the potential energy at the instant of release?

3.44 J

0 J

5.98 J

7.68 J

- 4. Multiple Choice3 minutes1 pt
A 4.3 kg box on a platform has a potential energy of 349 J. Determine the height of the platform.

0 m

8.27 m

9.81 m

2.43 m

- 5. Multiple Choice3 minutes1 pt
An object held at a height of 3.7 m has a potential energy of 209 J. What is the mass of the object?

5.76 kg

8.97 kg

4.32 kg

11.98 kg

- 6. Multiple Choice1 minute1 ptHow much work is being done with 200 N of force over 426 meters?85,200 J45,620 J90,480 J62,329 J
- 7. Multiple Choice1 minute1 ptIf 150 Joules of work is needed to move a box 10 meters, what force was used?1500 N15 N1.5 N150 N
- 8. Multiple Choice30 seconds1 pt
Which of the following is the best example of work being done.

doing homework

lifting a box

pushing a stationary box

holding a box

- 9. Multiple Choice30 seconds1 pt__________ is stored energy.PotentialKineticNone of the aboveAll of the above
- 10. Multiple Choice30 seconds1 ptEnergy due to motion is ____________ energy.PotentialEnergyKineticFriction
- 11. Multiple Choice30 seconds1 pt
The Law of Conservation of Energy states:

An object at rest tends to stay at rest, and an object in motion tends to stay in motion unless acted upon by an outside force.

Energy can neither be created or destroyed, but it can change form.

For every action there is an equal and opposite reaction.

The force acting upon an object is equal to its mass times its acceleration; the greater the mass of an object, the more force is required to move it.

- 12. Multiple Choice1 minute1 pt
It is the rate at which work was done. The standard metric unit of it is the Watt

time

displacement

power

force

- 13. Multiple Choice1 minute1 pt
This equation represents potential energy

V

_{f}=V_{0}+atmgh

0.5 m v

^{2}0.5 k x

^{2} - 14. Multiple Choice1 minute1 pt
This equation represent kinetic energy

V

_{f}=V_{0}+atmgh

(1/2) m v

^{2}(1/2) k x

^{2} - 15. Multiple Choice1 minute1 ptHow much work is being done with 200 N of force over 426 meters?85,200 J45,620 J90,480 J62,329 J
- 16. Multiple Choice1 minute1 pt
The SI unit of work

Joules

Watts

Newtons

meters

- 17. Multiple Choice1 minute1 pt
The SI unit for power

Watts

Joules

Newtons

Meters

- 18. Multiple Choice1 minute1 pt
Gravitational potential energy depends on the ________ and ________ of the object.

Height and mass

Spring constant and Distance away from equilibrium

Mass and Velocity

Height and Friction

- 19. Multiple Choice2 minutes1 pt
A student with a mass of 62.0 kg walks up a flight of stairs with a height of 3.40 meters. If it takes him 7.00 seconds to get to the top, how much power did he generate?

295 W

2070 W

86.8 W

295.12 W

- 20. Multiple Choice15 minutes1 pt
John and Bob weigh the same and both run up a flight of stairs. John reaches the top in 8 seconds while Bob follows in 10 seconds. Who has exhibited more power ?

John

Bob

they both have the same amount of power

not enough info is given to determine who has more power

- 21. Multiple Choice30 seconds1 pt
A student needs 10 Newtons of force to lift a box to the top of a 2 meter shelf. How much work do they do?

12 J

8 J

20 J

5 J

- Answer choicesTagsAnswer choicesTags
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