Physical Science Review

What is the law of conservation of energy?

• Energy can be created and destroyed.

• Energy can be transformed from one form to another but not created or destroyed.

• Energy can be created from nothing.

• Energy can be destroyed but not created.

What is potential energy?

• Energy stored in an object due to its position or state.

• Energy that is in motion and can do work.

• Energy that is released during a chemical reaction.

• Energy that is generated from the sun.

True or False: Sound waves only travel in one direction.

• True

• False

• Only in a straight line

• In multiple directions

What do you call energy that is in motion?

• Potential energy

• Kinetic energy

• Thermal energy

• Chemical energy

What is a wavelength?

• The distance between two crests or two troughs in a wave.

• The speed of a wave in a vacuum.

• The amplitude of a wave measured from the rest position.

• The frequency of a wave measured in hertz.

What is a wave?

• A disturbance that transfers energy from one place to another.

• A type of particle that moves through a medium.

• A static force that does not change over time.

• A phenomenon that only occurs in liquids.

What is the highest point of a wave called?

• Trough

• Crest

• Wave Base

• Amplitude

True or False: Energy can be moved from place to place by moving objects or through sound, light, or electric currents.

• True

• False

• Sometimes

• Only through electric currents

What is the difference between kinetic and potential energy?

• Kinetic energy is energy in motion, while potential energy is stored energy.

• Kinetic energy is stored energy, while potential energy is energy in motion.

• Kinetic energy is the energy of an object at rest, while potential energy is the energy of an object in motion.

• Kinetic energy is the energy of an object that is not moving, while potential energy is the energy of an object that is moving.

What is electrical energy?

• Energy caused by the movement of electrons.

• Energy stored in chemical bonds.

• Energy produced by nuclear reactions.

• Energy generated by solar panels.