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- 1. Multiple Choice
At what position does the pendulum have the greatest gravitational potential energy?Position DPosition CPosition B - 2. Multiple ChoiceWhich character has the greatest gravitational potential energy?Character ACharacter BCharacter CCharacter D
- 3. Multiple ChoiceWhich skier has the greatest kinetic energy?Skier ASkier BSkier CSkier D
- 4. Multiple ChoiceA girl on a motorbike passes by at a speed of 15 m/s. Her mass is 40 kg. What is her kinetic energy?300 Joules600 Joules950 Joules4500 Joules
- 5. Multiple ChoiceCalculate the potential energy of a roller coaster at the top of a 72 m hill that has a mass of 112 kg.79,027 J790,720 J7,020 J790,700 J
- 6. Multiple Choice
Energy is measured in _________.
joules
kilometers
newtons
meters per second
- 7. Multiple Choice
A ball has 100 J of potential energy when it is on a shelf when its not moving. The ball gets bumped off the shelf and starts falling- what happens to the total energy of the system?
Greater than 100 Joules because it is speeding up
exactly 100 Joules
Less than 100 Joules because the energy is lost
none of these
- 8. Multiple Choice
Energy is the ability to cause _________.
change
problems
channels
solutions
- 9. Multiple ChoiceWhat is the net force?40 N left0 N Balalnced400 N right40 N right
- 10. Multiple ChoiceIf a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?150 Newtons15 Newtons150 kilograms100 kilograms
- 11. Multiple ChoiceHow much force is needed to accelerate a 2 kg physics book to an acceleration of 6 m/s/s?36 N12 N3 N0.33 N
- 12. Multiple ChoiceIf the same force was applied to both shopping carts, which cart will have more acceleration?The empty shopping cartThe shopping cart that's fullThey will be the same
- 13. Multiple ChoiceWhat is the acceleration of an object traveling at a constant velocity?10 m/s20 m/s2250 m/s220 m/s2
- 14. Multiple ChoiceHow much force is needed to accelerate a 2 kg physics book to an acceleration of 6 m/s/s?36 N12 N3 N0.33 N
- 15. Multiple Choice
Newton’s 3rd law states that for every action, there is an ________ reaction.
unequal and opposite
equal and similar
stronger and opposite
equal and opposite
- 16. Multiple Choice
When a heavy football player and a light one run into each other, who exerts more force on the other?
The light one
The heavy one
Their forces are equal
- 17. Multiple Choice
You hit a wall with a stick. The equal but opposite reaction is _____
the wall pushes against you
the stick pushes against you
the wall pushes against the stick
you push against the stick
- 18. Multiple Choice
When a small car pushes a big truck, the truck applies an equal and opposite force on the car.
False
True
- 19. Multiple Choice
unit for force?
gram
m/s
newton
meter
- 20. Multiple ChoiceCollisions can be ____________or ___________.fast or slowfar or nearelastic or inelasticnone of the above
- 21. Multiple ChoiceWhat makes it possible to determine the motion of objects before or after colliding?Conservation of EnergyConservation of StrengthConservation of MomentumConservation of Homework
- 22. Multiple ChoiceWhat is the the total momentum of the red and blue ball before the collision?16 kg m/s32 kg m/s2 kg m/s6 kg m/s
- 23. Multiple ChoiceIn this type of collision, objects tend to "stick" together.elasticinelasticThey "stick" together in both types of collisions
- 24. Multiple ChoiceWhile playing pool, Emma notices that the pool balls bounce apart. What type of collision is this?ElasticInelasticExplosiveForce
- Answer choicesTagsAnswer choicesTags