Physical science midterm exam review part 2

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

How do you calculate the kinetic energy of an object?

Back

Kinetic energy (KE) is calculated using the formula KE = 1/2 mv², where m is the mass in kilograms and v is the velocity in meters per second.

Front

What happens to kinetic energy when the speed of an object increases?

Back

The kinetic energy increases; specifically, it increases with the square of the speed.

Front

What is the relationship between mass and kinetic energy?

Back

Kinetic energy is directly proportional to the mass of the object; as mass increases, kinetic energy increases if speed remains constant.

Front

What type of energy conversion occurs when an object falls?

Back

Gravitational potential energy is converted into kinetic energy as the object falls.

Front

What is a longitudinal wave?

Back

A longitudinal wave is a type of wave in which the particles of the medium move parallel to the direction of the wave's propagation, such as sound waves.

Front

What is a transverse wave?

Back

A transverse wave is a type of wave in which the particles of the medium move perpendicular to the direction of the wave's propagation, such as light waves.

Front

What does a graph showing an object at rest look like?

Back

A graph showing an object at rest will have a horizontal line, indicating no change in position over time.

Front

What is the formula for calculating kinetic energy?

Back

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

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, calculated using the formula PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.