P2.3.3 - Gravitational Filed And Potential Energy

Question 1

What is a gravitational field?

Answer 1

A region where a mass experiences an attractive force. All matter has it

Question 2

What is the equation for gravity force?

Answer 2

Gravity Force (N) = 
Mass(kg) x Gravitational Field Strength(N/kg)

Question 3

What is gravitational field strength?

Answer 3

A measure of the force in 1kg mass when it is in a gravitational field of another mass

Question 4

What does the force on the mass depend on?

Answer 4

The field

Question 5

When does the attractive force in a gravitational field act bigger?

Answer 5

When the mass of on or both of them is bigger

When the distance between them is smaller

Question 6

What is weight?

Answer 6

The force of Earth on an object

Question 7

What do you measure weight with?

Answer 7

Scales

Newtonmeter

Question 8

What is the equation for weight?

Answer 8

Weight(N)

Mass(kg) x gravitational field strength(N/kg)

Question 9

What is the gravitational field strength of Earth?

Answer 9

10N/kg

Question 10

What is the equation for acceleration due to gravity (gravity force)?

Answer 10

Gravity force(N)

Mass(kg) x Gravitational field strength (N/kg)

Resultant Force(N)
=
Mass(kg)
X
Acceleration due to gravity (m/s^2)

Question 11

What is gravitational potential energy?

Answer 11

The energy transferred when you lift an object in a gravitational field

Question 12

What is the equation for gravitational potential energy?

Answer 12

Gravitational Potential Energy(J)

Mass(kg) x height(m) x gravitational field strength (N/kg)