Energy Physical Science (A)

Front

What is the formula for calculating work done?

Back

Work (W) = Force (F) x Distance (d) Where work is measured in Joules (J), force in Newtons (N), and distance in meters (m).

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What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its height above the ground. It is calculated using the formula: Potential Energy (PE) = mass (m) x gravitational acceleration (g) x height (h).

Front

What is conduction?

Back

Conduction is the transfer of heat energy through direct particle contact, where faster-moving particles transfer energy to slower-moving particles.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated using the formula: Kinetic Energy (KE) = 1/2 x mass (m) x velocity (v)^2.

Front

What is the relationship between speed and kinetic energy?

Back

The kinetic energy of an object increases as its speed increases, since kinetic energy is proportional to the square of the speed.

Front

What is an example of energy conversion from kinetic to thermal energy?

Back

Friction is an example of energy conversion from kinetic energy to thermal energy, as it generates heat when two surfaces rub against each other.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the definition of thermal energy?

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Thermal energy is the total kinetic energy of particles in a substance, which is related to its temperature.

Front

What is the principle of conservation of energy?

Back

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

Front

What is the difference between potential energy and kinetic energy?

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Potential energy is stored energy based on an object's position, while kinetic energy is the energy of an object in motion.