Gravity and Gravitational Potential Energy Quiz

What is gravity?

• A force that pushes objects away from each other

• A force of attraction between two objects

• A force of repulsion between two objects

• A force that has no effect on objects

What is the formula for weight?

• Weight = mass x acceleration

• Weight = mass x gravitational field strength

• Weight = mass + gravitational field strength

• Weight = mass / gravitational field strength

What is the gravitational field strength for Earth?

• 12.3 newtons per kilo

• 5.0 newtons per kilo

• 1.6 newtons per kilo

• 9.8 newtons per kilo

What is the formula for gravitational potential energy?

• ep = g/mh

• ep = mh/g

• ep = mg/h

• ep = mgh

What is the unit of measurement for gravitational potential energy?

• Joules

• Meters

• Newtons

• Kilos

What is the force of attraction experienced by a 60 kilo person on Earth's surface?

• 120 newtons

• 588 newtons

• 60 newtons

• 9.8 newtons

What is the gravitational potential energy of a 100 gram apple thrown 3 meters up in the air?
(GPE = mgh)

• 5.88 joules

• 1.47 joules

• 2.94 joules

• 4.41 joules

What is the gravitational field strength for the moon?

• 5.0 newtons per kilo

• 1.6 newtons per kilo

• 9.8 newtons per kilo

• 12.3 newtons per kilo

What is the relationship between mass and weight?

• They are the same thing

• Mass is the force acting on an object in a gravitational field

• The weight of an object and its mass are directly proportional.

• Weight is an intrinsic property of an object

What is the gravitational field strength for an object on Jupiter's surface?
(Clue: Earth is 9.8 N/kg)

• 12.3 newtons per kilo

• 5.0 newtons per kilo

• 1.6 newtons per kilo

• 9.8 newtons per kilo