P2.1 Forces and their effects(1)

Question 1

What is resultant force?

Answer 1

A SINGLE FORCE that has the same effect on motion as the original forces all acting together

Question 2

What does resultant force cause?

Answer 2

A change in an object’s state of rest or motion

Question 3

What happens to a stationary object when the resultant force is zero?

Answer 3

Will stay stationary

Question 4

What happens to a STATIONARY or MOVING object when the resultant force is not zero?

Answer 4

Will accelerate in the direction of the force

Question 5

What happens to a moving object when the resultant force is zero?

Answer 5

Will continue moving in the same direction

Question 6

What is velocity?

Answer 6

The speed in a given direction

Question 7

What do you look at to find the distance travelled on a velocity-time graph?

Answer 7

See the area under the line

Question 8

What does a negative \ slope mean on a velocity-time graph?

Answer 8

The object is DECELERATING