Mechanical Energy

It is done when you apply a force to an object with the direction of its motion which is in a parallel direction.

• Force

• Work

• Net

This energy is present in all moving objects.

• Kinetic Energy

• Potential Energy

• Mechanical Energy

He is a German scientist that created the an Archimedean Screw for his experiment.

• James Prescott Joule

• Galileo Galilei

• Julius Robert Mayer

James Prescott Joule used seven (7) types of ramps for his experiment.

• True

• False

• None of the above

Based on this law, “An object will move indefinitely unless a net external force acts upon it.”

• Law of Conservation of Energy

• Law of Inertia

• Law of Conservation of Mechanical Energy

This law states that: “The total mechanical energy in a system remains the same during any process.”

• Law of Conservation of Energy

• Law of Inertia

• Law of Conservation of Mechanical Energy

A tie hanging on a tree with potential energy of 950 J. If the tie suddenly falls to the ground, what is the kinetic energy of the tie as it lands?

• 950 J

• 1,900 J

• 905 J

A 90 kg block of wood falls 5.0 m above the ground with a speed of 50 m/s from rest. How much mechanical energy is present in the block of wood?

• 116,091 J

• 161,910 J

• 116,910 J

A 9 kg ball was thrown in the air with an initial upward velocity of 20 m/s. How high will the ball go? Don't mind the air resistance.

• 20.41 m

• 02.41 m

• 20.14

How much kinetic energy does a 13 kg ball thrown at 5 m/s have?

• 162.2 J

• 162.5 J

• 126.5 J