Work, Power, Energy

Front

What is the formula for Kinetic Energy?

Back

KE = 1/2m*v²

Front

What is the SI unit for power?

Back

Watts

Front

If a cart has a kinetic energy of 0.5 J and its mass is doubled while its speed is tripled, what is the new kinetic energy?

Back

9 J

Front

What is the kinetic energy of a 735kg roller coaster at a height of 120m?

Back

216,090 J

Front

How much power is done when a 100 N force moves an object 5 meters in 10 seconds?

Back

50 W

Front

Define Work in physics.

Back

Work is defined as the product of force and the distance over which it acts (W = F*d).

Front

What is the formula for calculating Power?

Back

P = W/t, where P is power, W is work, and t is time.

Front

What is the relationship between Work and Energy?

Back

Work done on an object results in a change in its energy.

Front

What is Potential Energy?

Back

Potential Energy (PE) is the energy stored in an object due to its position or configuration, commonly expressed as PE = m*g*h.

Front

Explain the concept of Conservation of Energy.

Back

The total energy in a closed system remains constant; energy can neither be created nor destroyed, only transformed.