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- 1. Multiple ChoiceEnergy of a rock perched on a cliff is an example of...gravitationalelasticchemicalkinetic
- 2. Multiple ChoiceEnergy from a compressed spring would be an example of...kineticelasticgravitationalchemical
- 3. Multiple ChoiceHow do you calculate power?P = W/tP = E/tP = w * tP = bbq/chicken
- 4. Multiple ChoiceHow do we calculate work?W = F * dw = f * DW = F * Dw = f * d
- 5. Multiple ChoiceHow much work is being done with 200 N of force over 426 meters?85,200 J45,620 J90,480 J62,329 J
- 6. Multiple ChoiceThe SI unit of work is?JoulesWattsNewtonsmeters
- 7. Multiple ChoiceThe energy of movement is...?KineticPotential
- 8. Multiple ChoiceEnergy that is stored is called...KineticPotential
- 9. Multiple ChoiceThe SI unit for power is...?WattsJoulesNewtonsMeters
- 10. Multiple ChoiceWhat is the formula for Kinetic Energy?PE = m*g*hKE = 1/2m*v2W = F*dP = W/t
- 11. Multiple ChoiceA force exerted over a distance to move an object is ______________________.powerworkmomentumWatt
- 12. Multiple ChoiceIf 150 Joules of work is needed to move a box 10 meters, what force was used?1500 N15 N1.5 N150 N
- 13. Multiple ChoiceIf 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?272 m17 m4.05 m272 cm
- 14. Multiple ChoiceThe faster an object moves, the ________ kinetic energy it has.morelessnone of the aboveall of the above
- 15. Multiple ChoiceGravitational potential energy depends on the ________ and ________ of the object.Height and massFriction and movementMass and MovementHeight and Friction
- 16. Multiple ChoiceWhen you release a stretched rubber band, the rubber band has ________ energy.kineticpotentialnone of the aboveall of the above
- 17. Multiple ChoiceElastic potential energy is energy stored in object that are compressed or __________.movementstoredharnessedpulled
- 18. Multiple Choice
Which statement does not illustrate power?
A farmer plowing the rice field all day.
A Siberian husky pulling a sled all day.
A principal sitting on a chair while observing several classes all day.
A teacher encoding his power point presentation in his laptop all day.
- 19. Multiple Choice
Which statement illustrates work done?
A weightlifter holds a barbell above her head.
A teacher applies a force to a wall and becomes exhausted.
A rolling marble hits a note card and moves it across a table.
A waiter carries a tray full of meals across a dining room at a constant speed.
- 20. Multiple Choice
If the mass of the cart is 15kg, how much is the potential energy of the cart?
0J
1.2J
6J
58.8J
- 21. Multiple Choice
Two equal mass marbles are at the top of a ramp. One marble falls to the ground off the back while the other rolls down the ramp. What is true about the marbles when they reach the ground?
The marble that rolled down the ramp is moving faster than the marble that fell.
The marble that fell down the back of the ramp is moving faster than the marble that rolled.
The marble that rolled down the ramp is not moving when it reaches the ground.
The two marbles are moving with the same speed.
- 22. Multiple Choice
A crane lifts an 8-m long steel girder weighing 2600 N up 15 m off the ground. The crane did ___ of work.
0 J
39000 J
20800 J
2600 J
- 23. Multiple Choice
Power is defined as __________.
force times distance
force divided by time.
work divided by time.
work times time.
- 24. Multiple Choice
What is the unit of power?
newton
watt
meter
joule
- 25. Multiple Choice
An object’s gravitational potential energy is directly related to which of the following?
its height relative to a reference level
its mass
acceleration due to gravity
all of these
- Answer choicesTagsAnswer choicesTags