Motion, Force, Energy, and Waves

Front

What is the formula for momentum?

Back

p = m x v

Front

Explain the law of conservation of momentum.

Back

The law states that the total momentum of a closed system remains constant if no external forces act on it.

Front

Provide an example of a balanced force.

Back

A book resting on a table is an example of balanced forces.

Front

What is the formula to calculate force?

Back

Force = mass x acceleration (F = m x a)

Front

How does friction affect motion?

Back

Friction opposes motion, slowing down or stopping moving objects.

Front

Define kinetic energy.

Back

Kinetic energy is the energy of an object due to its motion.

Front

How is gravitational potential energy calculated?

Back

Gravitational potential energy is calculated using the formula: PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

Give an example of energy transfer.

Back

When a ball is thrown, chemical energy from the muscles is converted to kinetic energy.

Front

What does the law of conservation of energy state?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

How is power calculated?

Back

Power is calculated as the rate of doing work or the rate of energy transfer, P = W/t.