Question 1

What is a contact force?

Accepted Answer

Forces that act between objects that are touching each other

Answer

Forces that act between objects that are NOT touching

Question 2

Select the contact force.

Accepted Answer

Friction

Answer

Magnetism

Answer

Electrostatic

Question 3

What is a vector?

Accepted Answer

A measurement with size and direction

Answer

a measurement with just size

Question 4

Select the example which is not a vector

Accepted Answer

Temperature

Answer

accelerating 50mph south

Answer

A force acting 20N to the right

Answer

velocity 20m/s upwards

Question 5

What is a scalar?

Accepted Answer

A measurement with no direction

Answer

A measurement with scales in it

Question 6

Select the scalar.

Accepted Answer

A temperature of 40oC

Answer

travelling 30mph north

Question 7

What is the name of the red arrow in the force diagram shown?

Accepted Answer

thrust

Answer

reaction force

Answer

friction

Answer

air resistance

Question 8

What is the name of the green arrow in the force diagram shown?

Accepted Answer

reaction force

Answer

weight

Answer

friction

Answer

air resistance

Question 9

What is the name of the blue arrow in the force diagram shown?

Accepted Answer

air resistance

Answer

thrust

Answer

reaction force

Answer

friction

Question 10

What is the name of the yellow arrow in the force diagram shown?

Accepted Answer

weight

Answer

friction

Answer

thrust

Answer

reaction force

Question 11

What are the ends of a magnet called?

Accepted Answer

poles

Answer

gides

Question 12

Will these magnets attract or repel?

Accepted Answer

repel

Answer

attract

Question 13

Will these magnets attract or repel?

Accepted Answer

repel

Answer

attract

Question 14

Will these magnets attract or repel?

Accepted Answer

attract

Answer

repel

Question 15

What is the direction of the magnetic field lines around a magnet?

Accepted Answer

north to south

Answer

south to nouth

Question 16

Where is the magnet the strongest?

Accepted Answer

At the poles

Answer

In the middle

Question 17

What is the resultant force in this diagram?

Accepted Answer

4N to the left

Answer

16N to the left

Question 18

What is the resultant force in this diagram?

Accepted Answer

200N to the right

Answer

800N to the right

Question 19

Select the correct units for work done.

Accepted Answer

Joules

Answer

Newton

Question 20

Select the correct formula for work done

Accepted Answer

work done = force x distance

Answer

work done = force/distance

Question 21

A man pushes a box of 65N a distance of 2m. What is the work done?

Accepted Answer

130J

Answer

32.5J

Question 22

Calculate the weight of a 3kg pencil case on The Earth where gravitational field strength is 9.8 N/kg

Accepted Answer

29.4 N

Answer

0.3 N

Question 23

What is gravitational potential energy?

Accepted Answer

The energy stored by an object lifted to a height

Answer

The energy a moving object has

Question 24

A ball has a mass of 15kg on Earth where the gravity is 10N/kg, the ball is lifted 2m calculate the gravitational potential energy (GPE).

Accepted Answer

300J

Answer

75J

Question 25

What is inelastic deformation?

Accepted Answer

when something is permanently changed out of shape even after a force has been removed

Answer

the stretchy materials that form different shapes

Question 26

Which letter points to the limit of proportionality?

Accepted Answer

x

Answer

y

Question 27

What is the energy stored in a stretched spring?

Accepted Answer

elastic potential energy

Answer

gravitational potential energy

Question 28

How do you calculate gravitational potential energy?

Accepted Answer

0.5 x spring constant x (extension)2

Answer

(0.5 x spring constant)/extension2

Question 29

A spring is compressed by 0.3m. It has a spring constant of 20N/m. Calculate the elastic potential energy stored by the spring.

Accepted Answer

0.9J

Answer

3J

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