Energy, Force, and Work

Energy, Force, and Work

Energy Review

• What is Energy?

• The ABILITY to do WORK (apply force over a distance).

• Energy comes in several forms.

• Energy can also be transformed from one form to another.

• Forms of Energy:

Multiple Choice

Energy stored from position, stress, electrical charge, or others.

• Potential

• Kinetic

Multiple Choice

Energy of motion.

• Mechanical

• Electrical

• Kinetic

Multiple Choice

Energy that travels travels through time and space in electromagnetic waves.

• Light

• Sound

• Heat

Multiple Choice

Energy that comes from the motion of atoms.

• Sound

• Heat

• Light

Multiple Choice

Energy that comes from breaking and reforming atomic bonds.

• Nuclear

• Chemical

• Atomic

Multiple Choice

Energy that travels as a stream of electrons.

• Chemical

• Nuclear

• Electrical

Multiple Choice

Energy that travels through solids, liquids, and gases as vibrations, but can't travel through space.

• Light

• Sound

• Nuclear

Multiple Choice

Energy stored in the nucleus of an atom.

• Nuclear

• Chemical

• Light

Multiple Choice

Energy of moving parts that is the sum of all PE & KE.

• Mechanical

• Compound

• Machine

FORCES

• A FORCE is when something is PUSHED or PULLED.

• Can happen from a distance (i.e., gravity), or

• When 2 objects (from atoms up to stars) interact, they will affect each other.

WORK

• In physics, WORK is when energy is transferred to or from an object.

• Work is done when FORCE is applied to move an object or its atoms through a PUSH or a PULL over a DISTANCE.

Multiple Choice

A push or pull that acts on an object is called

• Work

• Force

• Energy

Multiple Choice

a man is pushing a table. Now the man is applying ____ on the table.

• work

• force

• muscles

Multiple Choice

Identify whether work is done or not in the picture

• Yes

• No

Multiple Choice

A force that tries to stop a moving object is known as?

• Gravitational force

• Force of friction

• Mechanical force