Suvat Equations

Question 1

What do the symbols in motion equations represent?

Answer 1

s = Displacement (m)
u = Initial velocity (m/s)
v = Final velocity (m/s)
a = Acceleration (m/s²)
t = Time (s)

Question 2

What is the first equation of motion?

Answer 2

v = u + at

Question 3

What is the second equation of motion?

Answer 3

s = ut + 1/2a * t^2

Question 4

What is the third equation of motion?

Answer 4

s= (u+v)/2 * t

Question 5

What is the fourth equation of motion?

Answer 5

v^2 = u^2 + 2as

Question 6

When can the equations of motion be used?

Answer 6

Only when the motion has uniform acceleration.

Question 7

How do you determine which equation to use?

Answer 7

Identify the three known variables and the one missing variable you need, then select the equation that includes them.

Question 8

How can you find acceleration from a velocity-time graph?

Answer 8

The gradient (slope) of the graph gives acceleration.

Question 9

How can you find displacement from a velocity-time graph?

Answer 9

The area under the graph gives displacement.