transferring energy

Question 1

What is energy?

Answer 1

The ability to do work or cause change.

Question 2

What are the two main types of energy?

Answer 2

Kinetic energy and potential energy.

Question 3

True or False: Energy can be created or destroyed.

Answer 3

False; energy cannot be created or destroyed, only transformed.

Question 4

Fill in the blank: The energy of motion is called _______.

Answer 4

Kinetic energy.

Question 5

What is potential energy?

Answer 5

Energy stored in an object due to its position or condition.

Question 6

Which type of energy is associated with an object’s height?

Answer 6

Gravitational potential energy.

Question 7

What is the formula for kinetic energy?

Answer 7

KE = 1/2 mv², where m is mass and v is velocity.

Question 8

What is the unit of energy?

Answer 8

Joule (J).

Question 9

Multiple Choice: Which of the following is an example of potential energy? A) A moving car B) A stretched rubber band C) A flowing river

Answer 9

B) A stretched rubber band.

Question 10

True or False: Energy can change forms.

Answer 10

True.

Question 11

Fill in the blank: The total energy in a closed system remains _______.

Answer 11

Constant.

Question 12

What is thermal energy?

Answer 12

The energy that comes from the temperature of matter.

Question 13

What is the primary source of energy for the Earth?

Answer 13

The Sun.

Question 14

Multiple Choice: Which process transfers energy through direct contact? A) Radiation B) Conduction C) Convection

Answer 14

B) Conduction.

Question 15

What is the process of energy transfer through liquids and gases called?

Answer 15

Convection.

Question 16

True or False: Light is a form of energy.

Answer 16

True.

Question 17

Fill in the blank: The law of conservation of energy states that energy cannot be _______.

Answer 17

Created or destroyed.

Question 18

What is mechanical energy?

Answer 18

The sum of potential and kinetic energy in an object.

Question 19

Multiple Choice: Which of the following is NOT a form of energy? A) Chemical B) Electrical C) Gravity

Answer 19

C) Gravity.

Question 20

What type of energy does a battery store?

Answer 20

Chemical energy.

Question 21

Fill in the blank: The energy of the position of an object is called _______.

Answer 21

Potential energy.

Question 22

What is sound energy?

Answer 22

Energy produced when an object vibrates.

Question 23

True or False: All forms of energy can be converted to other forms.

Answer 23

True.

Question 24

What is the energy transfer that occurs through electromagnetic waves called?

Answer 24

Radiation.

Question 25

What happens to energy in a closed system when work is done?

Answer 25

Energy is transferred or transformed but the total energy remains constant.

Question 26

Multiple Choice: Which type of energy is involved when you lift an object? A) Kinetic B) Thermal C) Potential

Answer 26

C) Potential.