Mechanical Energy

Front

Gravitational potential energy

Back

the energy an object has due to its height above the ground

Front

Equation for gravitational potential energy

Back

PE_g = mgh

Front

What are the two types of Mechanical Energy? (ME)

Back

Kinetic and Potential Energy

Front

Kinetic Energy

Back

Energy of motion

Front

The equation to find kinetic energy is:
Options: KE=1/2mv², KE=mgh, KE=1/2kx², KE=Fd

Back

KE=1/2mv²

Front

A 70 kg runner has a velocity of 5 m/s. What is her kinetic energy?

Back

875 J

Front

Which of the following objects has the most kinetic energy? Options: A 20 kg toddler running at 5 m/s, A 50 kg toddler running at 30 m/s, A 90 kg toddler running at 30 m/s, A 100 kg toddler running at 2 m/s

Back

A 90 kg toddler running at 30 m/s

Front

A 5 kg ball is lifted 12 m above the ground. What is its gravitational potential energy? Options: 60 J, 600 J, 17 J, 2.4 J

Back

600 J

Front

A 5 kg ball is dropped from a height of 2 m. Just before it reaches the ground, what type of energy does it have? Options: Potential Energy, Kinetic Energy, Nuclear Energy, Chemical Energy

Back

Kinetic Energy

Front

You drop a 5 kg ball from a height of 2 m. Just before it reaches the ground, how much kinetic energy does it have? Options: 10 J, 100 J, 7 J, 20 J

Back

100 J