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- 1. Multiple Choice
45 J of work were done on the object that moved 5 meters. How much force was applied to the object?
8 N
225 N
9 N
0 N
- 2. Multiple Choice
What is the ΔKE of a baseball hit with a force of 6000 N that travels 120 m across the field?
6000J
43560000J
720000J
50J
- 3. Multiple ChoiceWhen my velocity triples, my kinetic energy increases by ______ times.931.54.5
- 4. Multiple ChoiceTrue or false: the net work done on a body is equal to its change in kinetic energy.TrueFalse
- 5. Multiple Choice
What does work equal when the final change in kinetic energy equals 20,000 J?
0J
2041J
20,000J
4164931J
- 6. Multiple Choice
What kind(s) of energy is(are) in a person climbing a ladder?
Potential
Kinetic
Both
Need the mass of the person to determine.
- 7. Multiple Choice
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?
The PE and KE increase and decrease together
The PE decreases while the KE increases
Impossible to know without knowing the mass
The PE and the KE decrease and increase together.
- 8. Multiple Choice
According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?
The total amount of energy is conserved
The total amount of energy is less after a reaction
The total amount of energy is more after a reaction
Need the mass of the object to determine if energy is conserved.
- 9. Multiple Choice
If two marbles are rolled down a ramp from some height towards a container the _______ marble will move the container farther because it possess more _________ energy as it approaches the end of the ramp.
heavier, kinetic
heavier, potential
lighter, kinetic
lighter, potential
- 10. Multiple Choice
The rollercoaster has both PE and KE, but where will it have more PE than KE?
1
2
3
4
5
- Answer choicesTagsAnswer choicesTags