P8 Forces in balance
Exam-style questions
Name ......................................................................
0
1
.
1
Class ..................
Date ......................
Complete the sentence using words from the box.
drag
push
charge
speed
pull
A force is a ………………………. or a ………………………. .
0
1
.
2
(1 mark)
Forces can be contact forces or non-contact forces.
Draw lines to join each force to its correct type.
Force
Type
friction
gravitational
contact force
magnetic
tension
non-contact force
electrostatic
(5 marks)
0
1
.
3
Figure 1 shows two wooden boxes with ropes attached.
Figure 1
Calculate the size of the resultant force on the two boxes
Tick one box.
100 N
1100 N
550 N
© Oxford University Press 2016
(1 mark)
www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original.
1
P8 Forces in balance
Exam-style questions
Name ......................................................................
0
1
.
4
Class ..................
Date ......................
When the ropes are pulled the boxes start to move. State in which
direction they move.
Tick one box.
one box to the right and the other box to the left
both boxes to the right
both boxes to the left
0
(1 mark)
A student watched an ant pushing a leaf. The ant took the path
shown in Figure 2.
2
Figure 2
0
2
.
1
The student calculated the displacement of the ant by measuring
from the start at point A to another point in the journey.
Tick one box.
A–B
A–C
A–D
0
2
.
2
(1 mark)
Complete the sentences about the path taken by the ant,
Choose words from the box.
direction
length
vector
magnitude
scalar
The total distance travelled by the ant is a ………………………. quantity.
The journey travelled by the ant from point A to point B is a
………………………. quantity
because it can be measured in distance and ……………………… .
© Oxford University Press 2016
(3 marks)
www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original.
2
P8 Forces in balance
Exam-style questions
Name ......................................................................
0
2
.
3
Class ..................
Date ......................
The force the ant needed to pull the leaf at the start and finish can
be represented by two arrows in Figure 3.
Figure 3
Describe how the force changed and suggest a reason.
(2 marks)
0
A student made a hypothesis that a wooden block with different
friction materials on the base would need different forces to make
it move (Figure 4). The friction materials are sandpaper,
cardboard, glass, aluminium, and wood.
3
Figure 4
0
3
.
1
Plan an investigation to test the student’s hypothesis. The first two
lines are done for you.
1
Set up the apparatus as shown in Figure 4.
2
Stick a piece of friction material to the base of the wooden block.
3
© Oxford University Press 2016
www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original.
3
P8 Forces in balance
Exam-style questions
Name ......................................................................
Class ..................
Date ......................
4
5
6
(4 marks)
0
3
.
2
Why is it important to keep using the same wooden box?
(1 mark)
0
3
.
3
The student recorded the results in Table 1.
Table 1
Material
Weight in g
wool
190
glass
120
sandpaper
380
aluminium
140
wood
170
Evaluate whether the student’s hypothesis was correct or not.
(2 marks)
0
3
.
4
Calculate the weight used to move the sandpaper as a percentage
of the total weight of all the materials.
Percentage:
© Oxford University Press 2016
(2 marks)
www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original.
4
P8 Forces in balance
Exam-style questions
Name ......................................................................
0
Class ..................
Date ......................
An airline is testing the mass and volume of cases to ensure they
balance correctly on the conveyor belt. The results are shown in
Table 2.
4
Table 2
0
4
.
1
Volume of
case in cm3
Mass
in kg
Mass
in kg
34 000
1.50
1.25
44 000
6.50
7.00
84 800
14.85
15.20
127 200
22.45
21.50
Mean mass
in kg
Calculate the mean value of the masses of the cases.
Write the answers into Table 2.
(4 marks)
0
4
.
2
Conclude the relationship between the volume and the mass of a case.
(2 marks)
0
4
.
3
Many airlines restrict the maximum size of an individual case to 23 kg.
Suggest a reason why.
(1 mark)
© Oxford University Press 2016
www.oxfordsecondary.co.uk/acknowledgements
This resource sheet may have been changed from the original.
5