Mass, Weight and Density

Question 1

What is the formula for density?

Answer 1

p = m/v

the p is the weird greek letter

Question 2

What is the formula for weight?

Answer 2

W = mg

m is mass (kg), g is constant on earth (9.81N/kg) and W is in Newtons

Question 3

True or False?

A pendulum with a longer string has a longer period.

Answer 3

True

As length of string increases, period increases.

Question 4

Define gravitational field.

Answer 4

A region in which a mass experiences a force due to gravitational attraction

Question 5

Define gravitational force.

Answer 5

Weight

Question 6

Define gravitational field strength.

Answer 6

Amount of gravitational force per unit mass

On Earth, g is 9.81N/kg

Question 7

True or False?

Your mass is the same on Earth and Moon.

Answer 7

True

Mass refers to the amount of matter in an object

Question 8

Will gravitational field strength increase or decrease as you move further away from the Earth’s center?

Answer 8

Decrease