Which statement best describes energy?

• A form of matter that takes up space.

• The ability to do work or cause change.

• A type of force that pushes or pulls objects.

• A substance that can be seen and touched.

Which of the following is an effect of energy?

• Making things move.

• Powering machines.

• Making things hotter or producing sound.

• All of the above.

What is the fundamental definition of energy in physics?

• The amount of matter in an object.

• The capacity to do work or produce heat.

• The speed at which an object moves.

• The force exerted by an object.

What type of energy do plants primarily use to live and grow?

• Chemical energy.

• Electrical energy.

• Light energy.

• Sound energy.

What is true about energy according to the law of conservation of energy?

• It can be created but not destroyed.

• It can be destroyed but not created.

• It can be created and destroyed.

• It cannot be created or destroyed.

How does energy change forms?

• It is always lost as waste.

• It can be changed or transformed from one form to another.

• It only exists in one form at a time.

• It disappears after use.

What energy transformation occurs when a ukulele is strummed?

• Chemical energy to sound energy.

• Kinetic energy to sound energy.

• Light energy to kinetic energy.

• Electrical energy to heat energy.

When a light bulb is switched on, what energy transformations take place?

• Electrical energy to light and sound energy.

• Chemical energy to light and heat energy.

• Electrical energy to light and heat energy.

• Kinetic energy to light energy.

What energy transformations occur when a match is struck?

• Kinetic and chemical energy to light and heat energy.

• Electrical energy to light and heat energy.

• Sound energy to chemical energy.

• Light energy to kinetic energy.

When a drawn bow and arrow is released, what energy transformation occurs?

• Kinetic energy to elastic potential energy.

• Gravitational potential energy to kinetic energy.

• Elastic potential energy to kinetic energy.

• Chemical energy to kinetic energy.