Question

1. what is the best definition for energy from the options below?

(a) the ability to apply a force over a distance
(b) how high up an object can get
(c) how quickly something will burn
(d) the ability to slow down properly

1. the conservation of energy states:

(a) energy can be created
(b) energy cannot be created or destroyed
(c) energy is not the same as thermal
(d) only forces can eliminate energy

1. what can you use to calculate work?

(a) velocity and distance
(b) mass and acceleration
(c) force and distance
(d) the amount of energy created

1. candles can burn gently for hours, while dynamite explodes immediately, what can we conclude about this comparison?

(a) candles have more power than dynamite
(b) dynamite will always store less energy than a candle
(c) dynamite has more power than candles
(d) a candle could never store as much energy as dynamite

1. simple machines are used to do which of the following

(a) to create small amounts of energy
(b) to reduce the distance needed to travel between objects
(c) multiply force or change the direction of force
(d) to divide the amount of work needed to complete a task

1. if you go down a slide that has friction, your potential energy will transform to what type(s) of energy?

(a) kinetic energy
(b) thermal + kinetic energy
(c) potential energy + kinetic energy
(d) elastic energy

Explanation:

Answer:

1. A) The ability to apply a force over a distance
2. B) Energy cannot be created or destroyed
3. C) force and distance
4. C) Dynamite has more power than candles
5. C) Multiply force or change the direction of force
6. B) Thermal + Kinetic Energy