Science Review

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as kinetic, potential, thermal, and chemical.

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What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

Front

What is potential energy?

Back

Potential energy is stored energy based on an object's position or state. For example, a ball held at a height has gravitational potential energy.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of particles in an object.

Front

What is an example of energy transformation?

Back

An example of energy transformation is when electrical energy is converted into light energy in a light bulb.

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What is mechanical energy?

Back

Mechanical energy is the sum of potential and kinetic energy in an object that is used to do work.

Front

What is the effect of temperature on the solubility of sugar in water?

Back

Generally, increasing the temperature of water increases the solubility of sugar, allowing it to dissolve faster.

Front

What is an example of energy causing motion?

Back

Kicking a soccer ball is an example of energy causing motion, as the energy from the kick transfers to the ball, making it move.

Front

What is the difference between heat and temperature?

Back

Heat is the energy transferred between objects due to a temperature difference, while temperature is a measure of the average kinetic energy of particles in a substance.