Motion

Question 1

What are the two main types of physics quantities?

Answer 1

Scalar
Vector

Question 2

What are scalar quantities

Answer 2

Magnitude
Unit

Question 3

What are vector quantities

Answer 3

Magnitude
Unit
Direction

Question 4

Examples of scalar quantities

Answer 4

Distance - m
Speed - m/s
Time - s

Question 5

Examples of vector quantities

Answer 5

Displacement - m
Velocity - m/s

Question 6

Equation for average speed

Answer 6

Sav = d/t

Question 7

Other equation for average speed

Answer 7

Average speed = (initial speed + final speed)/ 2

Sav = (u+v)/2

Question 8

Equation for rate of change of speed

Answer 8

Rate of change of speed = (final speed - initial speed)/ time taken

Δs = (v-u)/t

REMEMBER USE m/s(squared)

Question 9

What does Δ mean?

Answer 9

Change in

Question 10

What does V stand for

Answer 10

Final speed

Question 11

What does u stand for

Answer 11

Initial speed

Question 12

Equation for average velocity

Answer 12

Average velocity = displacement/ time

V = Δs/t

Question 13

What does Δs mean?

Answer 13

Rate of change in speed and displacement BE CAREFUL

Question 14

Other equation for average velocity

Answer 14

Average velocity = (initial velocity + final velocity )/ 2

V = (u +v)/2

Question 15

Equation for acceleration

Answer 15

Acceleration = (final velocity - initial velocity)/ time

a = Δv/t

Question 16

What does Δv stand for?

Answer 16

Δv = v-u

Question 17

What happens to an object when it is accelerating

Answer 17

An objects velocity is increasing

Question 18

What happens when an objects velocity is decreasing,

Answer 18

The object is said to be decelerating also called retardation