Physics - Kinematics

Question 1

What is the difference between scalar and vector quantities?

Answer 1

Scalar quantities only have a value, whilst vector quantities have have both a value and a direction

Question 2

What is the difference between distance and displacement?

Answer 2

.

Question 3

What is the difference between speed and velocity?

Answer 3

.

Question 4

Equations for speed and velocity

Answer 4

Speed = distance / time
Velocity = change in displacement / time

Question 5

Acceleration equation

Answer 5

Acceleration = change in velocity / time

Question 6

Distance - time graphs and displacement - time graphs

Answer 6

.

Question 7

Speed - time graphs and velocity - time graphs

Answer 7

.

Question 8

How can you find the total distance travelled using a velocity - time graph

Answer 8

The area under the graph is equal to the total distance of a velocity - time graph

Of an acceleration time graph this would be the velocity

Question 9

How do you find acceleration using a velocity - time graph?

Answer 9

The gradient of the line at any point is the acceleration at that point
Of a distance - time graph this would be the velocity

Question 10

What is the average speed?

Answer 10

Average speed = total distance / total time

Question 11

Suvat equation

Answer 11

v² - u² = 2as