Question 1

9.4 Friction is a force that can appear when two objects are in _______ with each other.

Accepted Answer

contact

Question 2

9.4 In contact means ___________.

Accepted Answer

touching

Question 3

9.4 Rubbing you hands together - the force of friction causes them to ________ up.

Accepted Answer

warm

Question 4

9.4 The force of ____ makes it difficult to move a heavy object.

Accepted Answer

friction

Question 5

9.4 What is this?

Accepted Answer

forcemeter

Question 6

9.4 One of the factors that affect the size of the force of friction is: _____________.

Accepted Answer

add a weight

Question 7

9.4 One of the factors that affect the size of the force of friction is: _____________.

Accepted Answer

turn

Question 8

9.4 One of the factors that affect the size of the force of friction is: _____________.

Accepted Answer

wrap in cling film

Question 9

9.4 Friction is a force that acts when one surface is in contact with each other.

Accepted Answer

false

Answer

true

Question 10

9.4 Friction acts to oppose motion.

Accepted Answer

true

Answer

false

Question 11

9.5 Write one of the forces that is acting on the parachutist:

Accepted Answer

air resistance

Question 12

9.5 Write one of the forces that is acting on the parachutist:

Accepted Answer

weight

Question 13

9.5 When forces cancel each other out like this, we say that forces are _________.

Accepted Answer

balanced

Question 14

9.5 Two forces act on the parachutist. Their effects ______ each other.

Accepted Answer

cancel

Question 15

11.1 By observing these objects, _________ have been able to discover a lot about space.

Accepted Answer

astronomers

Question 16

11.1 Every day, the Sun rises in the _______.

Accepted Answer

east

Question 17

11.1 The sun sets in the _______.

Accepted Answer

west

Question 18

11.1 The Sun travels around the Earth once every day.

Accepted Answer

false

Answer

true

Question 19

11.1 The Earth travels around the sun.

Accepted Answer

true

Answer

false

Question 20

11.1 The Earth's _______ is the line joining the North Pole to the South Pole.

Accepted Answer

axis

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