Quarter 2 Review

Front

What is amplitude in a wave?

Back

Amplitude is the maximum distance a wave moves from its rest position, representing the height of the wave.

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 as PE = mgh.

Front

How do you calculate gravitational potential energy?

Back

Gravitational potential energy (PE) is calculated using the formula PE = mgh, where m is mass (kg), g is acceleration due to gravity (9.8 m/s²), and h is height (m).

Front

What does the Law of Conservation of Energy state?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What are the two natures of light?

Back

Light acts as both a particle and a wave.

Front

What is the formula for calculating gravitational potential energy of a 12 kg rock at a height of 25 meters?

Back

PE = mgh = 12 kg * 9.8 m/s² * 25 m = 2940 J.

Front

What is the significance of the height in gravitational potential energy?

Back

The height of an object in a gravitational field directly affects its gravitational potential energy; the higher the object, the greater the potential energy.

Front

What happens to energy in a closed system according to the Law of Conservation of Energy?

Back

In a closed system, the total energy remains constant; it can change forms but the total amount does not change.

Front

What is the relationship between speed and energy in a system?

Back

As the speed of an object increases, its kinetic energy increases, but the total energy in a closed system remains constant.

Front

What is the difference between kinetic energy and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on an object's position.