7.2 Acceleration

Question 1

What is the definition of acceleration?

Answer 1

» Change of velocity per unit time

Question 2

What are the units of acceleration?

Answer 2

» ms^-2

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

What is the formula for acceleration by using the gradient of a velocity time graph?

Answer 4

» a = (v-u)/t
» v = u + at

Question 5

What is non-uniform acceleration?

Answer 5

» Where the motion of an object changes at a varying rate

Question 6

How can you find acceleration when acceleration is non-uniform?

Answer 6

» Draw a tangent at that specific time
» Calculate the gradient on the velocity time graph