Science QA Review #2

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass and speed of the object.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a car parked on a hill has potential energy due to its height.

Front

How does kinetic energy compare to potential energy when a car is moving?

Back

Kinetic energy is greater when the car is moving compared to its potential energy when parked.

Front

What process do plants use to convert radiant energy into chemical energy?

Back

Photosynthesis is the process by which plants convert radiant energy (from sunlight) into chemical energy (in the form of glucose).

Front

What is sublimation?

Back

Sublimation is the process where a solid changes directly into a gas without passing through the liquid state.

Front

What is the freezing point of water in Celsius?

Back

The freezing point of water is 0° C.

Front

What energy transformation occurs in a battery-operated radio?

Back

The energy transformation in a battery-operated radio is chemical energy to electrical energy to sound energy.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is energy of motion, while potential energy is stored energy based on position.

Front

What is an example of kinetic energy in everyday life?

Back

A moving car, a running dog, or a thrown ball are all examples of kinetic energy.

Front

What is an example of potential energy in everyday life?

Back

A book on a shelf, water stored in a dam, or a drawn bow are examples of potential energy.