Acceleration & Indicating Direction

Question 1

What is acceleration?

Answer 1

The rate of change of Velocity.

Question 2

What is the acceleration equation?

Answer 2

Acceleration = Change in Velocity (m s-1) / Time Taken (s)

Question 3

What is acceleration measured in?

Answer 3

Meters per Second Squared OR m s-2

Question 4

Is acceleration a SCALAR or VECTOR quantity?

Answer 4

VECTOR

Question 5

What two c variables can change for there to be a change in velocity?

Answer 5

• Speed
• Direction
  Can be one or both of them

Question 6

If an object is slowing down will its velocity be positive or negative?

Answer 6

NEGATIVE

Question 7

What is negative acceleration called?

Answer 7

Decceleration

Question 8

Can you use +’ve and -‘ve signs to describe motion?

Answer 8

YES!

Question 9

Right is Positive - So what will -3m mean?

Answer 9

3m Displacement to the LEFT

Question 10

Right is Positive - So what will 8ms-1 mean?

Answer 10

8m Velocity to the RIGHT

Question 11

Right is Positive - So what will -4ms-2 mean?

Answer 11

4m acceleration of an object to the left

or a deceleration of an object moving to the right