Distance-Time graphs
Speed & Acceleration
Forces Definitions
Forces Calculations
Velocity-Time Graphs
100

What distance is travelled in section B?

0 km / none

100

Speed is a scalar quantity (has only magnitude, no direction), what is the vector quantity for speed called?

Velocity

100
Give an example of a vector quantity

Any variable with both magnitude and direction. E.g. Force, acceleration, displacement, velocity, gravitational field, current, etc

100

Which shows a zero resultant force? (top or bottom)

Top

100

Describe the motion in section B

Constant velocity

200

What distance is travelled in section C?

30km

200

A runner covers a 100m in 20s. What is their average speed?

5m/s

200

State Newton's Third Law

(standard quote…) For every action there is an equal and opposite reaction.

(More helpful to learn and understand…) When two objects interact, they exert equal and opposite forces on one another.

200

What is the resultant Force?

2N downwards
200

Describe the motion of section A

Acceleration

300

What is the average speed for section A?

Displacement = 30km

Time = 2h

Speed = distance / time = 30/2

Speed = 15 km/h

300

A car accelerates from rest to 20m/s in 5seconds. What is their acceleration?

4m/s2

300

State the three possible effects of an unbalanced force.

•change the object's speed

•change the object's direction

•change the object's shape

300

What is the direction and moment of force when 300N is applied at 0.1m from the pivot? (include units)

clockwise, 30Nm

300

What is the acceleration during section A

15 m/s2

400

What is the total displacement of this person?

0km (distance covered is 120km)

400

How far will a cyclist have covered if they travelled at 10m/s for 1minute?

600m

400

State Newton's First Law

If the forces on an object are balanced:

if it is stationary, it will remain stationary.

if it is moving, it will continue moving at steady
speed in a straight line.

400

Draw and calculate the resultant force.

(See handout)

400

What is the acceleration of section

-1.25 m/s2


500

What is happening between 30 and 60 seconds?

Person is accelerating

500

A car slows down from 20m/s to 10m/s in 20seconds. What is their acceleration?

-0.5 m/s2

500

How would you find the centre of mass of an irregular shaped object?

500

A car of weight 12kN is parked on an inclined road at an angle of 10to the horizontal. Use the geometrical method to find the component of the car's weight acting down the slope.

2kN

500

What is the total distance covered in this graph

A: 75m

B: 150m

C: 150m+50= 200m

D: 250m

Total: 675m