Year 7 Forces Their Effects And The S

Medway LEA Advisory Service
Forces and their effects/the solar system and beyond
7K & 7L

21 min
22 marks
Q1-L3, Q2-L4, Q3-L4, Q4-L5, Q5-L5, Q6-L6
1. (a) Nicola is trying out her new roller blades. Robert is pulling her along with a rope. Arrows A, B, C and D show the directions of four forces acting on Nicola.

(i) Which arrow shows the direction of the force of gravity on Nicola?
Give the letter.
...............
1 mark

(ii) Which arrow shows the direction of the force of the rope on Nicola?
Give the letter.
..............
1 mark
(b) Robert pulls Nicola at a steady speed of 2 metres per second. How far will Nicola travel in 10 seconds?
............... metres
1 mark
(c) Nicola lets go of the rope and she slows down. Gravity still acts on Nicola. Give the name of one other force still acting on Nicola after she lets go of the rope.
...........................................................
1 mark maximum 4 marks

2. Some children watched an eclipse of the Sun. During the eclipse, the Moon passed between the Sun and the Earth. It blocked out sunlight.

(a) Amrik watched the eclipse. He knew that the Sun is much bigger than the Moon but they looked about the same size. Why did they look the same size? Tick the correct box.
The Moon is nearer to the Earth than the Sun is.

The Sun is nearer to the Earth than the Moon is.

The Sun goes round the Earth faster than the Moon does.

The Moon goes round the Sun faster than the Earth does.

1 mark

(b) Amrik 's class measured the light level during the eclipse. The graph below shows their results.

(i) At what time did the Moon block out most of the Sun 's light?
Use the graph to help you.
.................................... am
1 mark
(ii) What happened to the air temperature during the eclipse?
..............................................................................................................
Give the reason for your answer.