P3 - Changing speed

Question 1

What does a speed time graph show?

Answer 1

A speed time graph shows how the speed of an object changes with time.

Question 2

What is acceleration?

Answer 2

An increase in speed.

Question 3

What is acceleration measured in?

Answer 3

Acceleration is measured in m/s^2.

Question 4

What is the formula for acceleration?

Answer 4

Acceleration = change in speed/time taken.

Question 5

What is velocity?

Answer 5

Velocity is the speed of a moving object in a known direction.

Question 6

How can an object accelerate if its speed is constant?

Answer 6

This is because its direction may be changing.