Gravity, Weight And GPE

Question 1

What is GPE

Answer 1

Gravitational Potential Energy

Question 2

What is gravity?

Answer 2

• force of attraction between two objects
• depending on the mass + distance between them

Question 3

What is a gravitational field

Answer 3

• field of influence of gravity on nearby object

Question 4

What is gravitational field strength (g)

Answer 4

The strength of a gravitational field (e.g. 9.8N/kg on Earth)

Question 5

Formula for weight

Answer 5

Weight (N) = mass (kg) x g (N/kg)

Question 6

Weight vs mass

Answer 6

• mass: naturally belonging property of an object
• weight: the force acting on an object in a gravitational field