Energy Pretest

How much gravitational potential energy does a 100kg (220lb.) skydiver have if they jump from 4000 meters?

• 3920000 J

• 294 J

• 180000 J

• 1225 J

What is the kinetic energy of a 1,600kg Mustang travelling at 15 m/s (33mph)

• 180000 J

• 294 J

• 1225 J

• 3920000 J

What is the unit for mass?

• kilogram (kg)

• meter (m)

• Newton (N)

• Joule (J)

What is the unit for energy?

• kilogram (kg)

• meter (m)

• Newton (N)

• Joule (J)

What is the formula for gravitational potential energy?

• distance / time

• mass x acceleration

• velocity / time

• ½(mass) x (velocity)²

• (mass) x (acceleration of gravity) x (height)

A 2kg television falls from 1 meter. How much energy does it have?

• 19.6 J

• 196 J

• 2 J

• 9.8J

A bicyclist pedaling is a type of...

• kinetic energy

• potential energy

An archer with her bow drawn is a type of...

• kinetic energy

• potential energy

A baseball thrown to second base is a type of...

• kinetic energy

• potential energy

Sitting in the top of a tree is a type of...

• kinetic energy

• potential energy