Physics Pretest

Front

What is the relationship between temperature and gas volume in a closed system?

Back

As temperature increases, the volume of gas also increases, according to Charles's Law.

Front

Define potential energy.

Back

Potential energy is the stored energy of an object due to its position or state.

Front

What is an electric field?

Back

An electric field is a region around a charged particle where other charged particles experience a force.

Front

How does linear speed vary on a rotating object?

Back

Linear speed increases with distance from the center of rotation; the outside horse on a merry-go-round moves faster than the inside horse.

Front

What is inertia?

Back

Inertia is the property of an object to resist changes in its state of motion.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion.

Front

State Newton's First Law of Motion.

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

Explain the concept of conservation of energy.

Back

Energy cannot be created or destroyed; it can only be transformed from one form to another.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.