6 SCI 3.1 Energy Force Work Power Motion

Front

What unit is used to measure energy and work?

Back

Joules

Front

How much work is done when 1 N of force moves an object 1 meter?

Back

1 Joule

Front

What is the definition of 'work' in physics?

Back

The exertion of force on an object that causes it to change its motion in the same direction of the force exerted.

Front

How is power defined in physics?

Back

Power is the rate at which work is done or energy is transferred.

Front

What is the formula for calculating work?

Back

Work = Force x Distance (W = F x d)

Front

What is the formula for calculating power?

Back

Power = Work / Time (P = W / t)

Front

If 10 Joules of work is done in 2 seconds, what is the power output?

Back

5 Watts

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv².

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state, commonly gravitational potential energy, calculated as PE = mgh.

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in energy of that object.