9.4 Energy changes

Question 1

Kinetic energy

Answer 1

The energy of a moving object

Question 2

The amount of kinetic energy an object has depends upon its?

Answer 2

mass and speed.

Question 3

If the Object’s Mass doubles 🡪 kenetic energy?

Answer 3

KE doubles

Question 4

if Object’s Speed doubles 🡪 Kinetic energy?

Answer 4

inceases. by a factor of 4

Question 5

The —— the object and the —–
its speed 🡪 the —- energy it will transfer to the object it collides with 🡪 —– the damage

Answer 5

1. heavier
2. greater
3. more
4. greater

Question 6

Potential energy is the energy that an object has because of its position or structure.

Question 7

Potential energy is also called:

Answer 7

stored energy.

Question 8

Potential energy gives objects

Answer 8

the capacity to make things happen

Question 9

An object positioned above the ground has?

Answer 9

gravitational potential energy.

Question 10

The —- the mass of an object, the —- its —– potential energy will be

Answer 10

1. greater
2. greater
3. gravitational

Question 11

A stretched or compressed spring has

Answer 11

elastic potential energy.

Question 12

This elastic potential energy is converted into kinetic energy when the spring is released and returns to its original shape.

Question 13

law of conservation of energy
states that:

Answer 13

Energy may be transferred from one
object to another, but is never
created or destroyed.

Question 14

Conservation of energy states that There is always the same amount of
—– at the —- as there was at the
—-.

Answer 14

energy
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start