7.2 Acceleration

Question 1

What is acceleration

Answer 1

Change of velocity per unit time
Unit - ms^-2
Vector quantity
Deceleration values are negative and signify that the velocity decreases with respect to time

Question 2

For a moving object that does not change direction, its acceleration at any point can be worked out from…

Answer 2

…its rate of change of velocity

Question 3

What is uniform acceleration

Answer 3

Where the velocity of an object moving along a straight line changes at a constant rate
Acceleration is constant

Question 4

Equation: an object accelerating uniformly

Answer 4

a=v-u/t

Question 5

What is non-uniform acceleration

Answer 5

Where the direction of motion of an object changes or its speed changes at a varying rate

Question 6

What is shown in the gradient of a velocity time graph

Answer 6

Acceleration

Question 7

How to find the acceleration of an object from a velocity time graph

Answer 7

Find gradient of line or tangent