P5 - Forces

Question 1

What does a vector quantity have?

Answer 1

Magnitude and direction e.g acceleration, momentum, force, displacement and velocity

Question 2

What quantity only has magnitude?

Answer 2

Scalar e.g speed, distance, time, temperauture

Question 3

Give the 2 types of forces

Answer 3

1. Contact

2. Non-contact

Question 4

What is an interacting pair?

Answer 4

A pair of forces that are equal and opposite on 2 interacting objects (Newton’s 3rd law)

Question 5

What is a gravitational force?

Answer 5

A force of attraction between masses, planets and stars create a strong gravitational force.

Question 6

What does a strong gravitational force do to objects?

Answer 6

1. Makes them fall to the ground

2. Gives them weight.

Question 7

What is weight?

Answer 7

The force acting on an object due to gravity caused by the gravitational field.

Question 8

When will the gravitational field strength be stronger?

Answer 8

Being closer to the mass causing the field

The size of the mass causing the field.