ACP Energy (1)

Front

What is Power in physics?

Back

Power is the rate at which work is done or energy is transferred, measured in Watts (W).

Front

How do you calculate Power?

Back

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

Front

What is Potential Energy?

Back

Potential Energy is the energy stored in an object due to its position or configuration, commonly calculated as PE = mgh (mass x gravity x height).

Front

What is the formula for Total Mechanical Energy?

Back

Total Mechanical Energy (TME) = Potential Energy (PE) + Kinetic Energy (KE).

Front

How do you calculate Kinetic Energy?

Back

Kinetic Energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

What is the unit of Energy?

Back

The unit of Energy is the Joule (J).

Front

What is the relationship between work and energy?

Back

Work is done when energy is transferred from one system to another, and it is measured in Joules.

Front

How do you calculate the Potential Energy of an object at a height?

Back

Potential Energy (PE) = mass (m) x gravity (g) x height (h).

Front

What is the gravitational acceleration on Earth?

Back

The gravitational acceleration (g) on Earth is approximately 9.81 m/s².

Front

If a force of 50 N moves an object 2 m in 5 seconds, what is the Power?

Back

Power = Work / Time = (Force x Distance) / Time = (50 N x 2 m) / 5 s = 20 Watts.