Weight & Gravity

What is mass?

• How much MATTER makes up an object.

• How much GRAVITY is pulling an object.

If the mass of an object on Earth is 18 grams, what would the mass of the same object be on the Moon?

• 18 g

• 4 g

• 0 g 

• 32 g 

The force of gravity acting on an object is the object's ______.

• mass

• matter

• weight 

• friction 

Which of the following never changes no matter where in the universe?

• weight

• force

• mass

• pounds

A cat on Earth has a mass of 2 kg. What is it's weight?

Fg = mxg

g on earth = 9.8 m/s^2

• 2N

• 20kg

• 2kg

• 20N

A cat travelled to Mars, it's mass is still 2Kg. The gravitational strength is 3.7 N/Kg.

What is it's weight on Mars?

Fg = mxg

• 7.4N

• 74kg

• 7.4g

• 7.4N/Kg

A toolbox on Earth has a weight of 300N.

Calculate the mass.

Fg = mxg

g on earth = 9.8 m/s^2

• 3000kg

• 30kg

• 30g

• 30N

An ipad with a mass 0.5Kg was sent to Jupiter. The gravitational strength on Jupiter is 23.64N/Kg.

Calculate the weight of the ipad.

Fg = mxg

• 11.82 N/Kg

• 11.82N

• 47.28N

• 47.28N/Kg

On Neptune a bin weighs 112.5N and has a mass of 10Kg.

Calculate the gravitational field strength.

Fg = mxg

• 1125N/Kg

• 11.25N/Kg

• 1125N

• 11.25N