WorksheetsSec 3N GAP 2017
Total questions: 25
Worksheet time: 1hrs 22mins
Name
Class
Date
1.
Why is the force of gravity a vector quantity?
a)
It acts on a body in a downward direction.
b)
It has direction and size.
c)
It has direction but no size.
d)
It is a force of attraction
2.
Which statement about scalar quantities and vector quantities is correct?
a)
Scalars have direction only.
b)
Scalars have size and direction.
c)
Vectors have direction only.
d)
Vectors have size and direction.
3.
Which quantity is vector?
a)
acceleration
b)
distance
c)
time
d)
volume
4.
The graph represents the movement of a car.
What is the distance travelled in the first 5 seconds?
What is the distance travelled in the first 5 seconds?
a)
2 m
b)
10 m
c)
25 m
d)
50 m
5.
Which graph shows the acceleration of free-fall for an object at different heights above the surface of the Earth?
a)
A
b)
B
c)
C
d)
D
6.
A gymnast jumps onto a trampoline and bounces upwards.
On a second occasion, the gymnast bounces higher.
What remains constant on both occasions?
On a second occasion, the gymnast bounces higher.
What remains constant on both occasions?
a)
the gymnast's acceleration in the air
b)
he gymnast’s maximum gravitational potential energy
c)
the gymnast’s maximum kinetic energy
d)
the gymnast’s speed on contact with the trampoline
7.
Which property of a body resists a change in its motion?
a)
density
b)
mass
c)
volume
d)
weight
8.
Which force opposes the motion of an object sliding over a surface?
a)
acceleration
b)
friction
c)
gravity
d)
inertia
9.
Margaret cleans her bicycle wheel.
Which action makes the brakes work efficiently?
Which action makes the brakes work efficiently?
a)
drying the wheel rim
b)
oiling the wheel rim
c)
polishing the wheel rim
d)
wetting the wheel rim
10.
Which statement about the masses and weights of objects on the Earth is correct?
a)
A balance can only be used to compare weights, not masses,
b)
Heavy objects always have more mass than light ones.
c)
Large objects always have more mass than small ones.
d)
Mass is a force but weight is not.
11.
A space probe of mass 500 kg is sent to an asteroid which has a gravity field strength of 0.014 N/kg.
What is the weight of the probe when it lands on the asteroid?
What is the weight of the probe when it lands on the asteroid?
a)
7.0 N
b)
70 N
c)
3600 N
d)
36 000 N
12.
A uniform beam is pivoted at its centre.
Two masses are suspended at equal distances from the pivot.
Which statement is correct?
Two masses are suspended at equal distances from the pivot.
Which statement is correct?
a)
If X has a mass of more than 2 kg, it will fall.
b)
If X has a mass of more than 2 kg, it will rise.
c)
If X has a mass of exactly 2 kg. it will rise.
d)
If X has a mass of less than 2 kg, it will fall.
13.
A beam hangs from a pivot. A force of 10 N acts on the beam in the position shown.
One other force of 10 N keeps the beam in equilibrium.
In which position does this other force of 10 N act?
One other force of 10 N keeps the beam in equilibrium.
In which position does this other force of 10 N act?
a)
A
b)
B
c)
C
d)
D
14.
Two blocks X and Y are placed on a uniform beam. The beam balances on a pivot at its centre.
What does this show about X and Y?
What does this show about X and Y?
a)
They have the same mass and the same density.
b)
They have the same mass and the same weight.
c)
They have the same volume and the same density.
d)
They have the same volume and the same weight.
15.
There is a hole in the handle of a hammer so that it can be hung from a nail.
The centre of gravity of the hammer is marked G.
Which hammer is the most unstable?
The centre of gravity of the hammer is marked G.
Which hammer is the most unstable?
a)
A
b)
B
c)
C
d)
D
16.
The diagrams show a uniform road with its midpoint on a pivot.
Two equal forces F are applied to the rod. Which diagram shows the rod in equilibrium?
Two equal forces F are applied to the rod. Which diagram shows the rod in equilibrium?
a)
A
b)
B
c)
C
d)
D
17.
What is the principle of conservation of energy?
a)
Energy can be lost to the surroundings.
b)
Energy can be stored,
c)
Energy cannot be created.
d)
Energy cannot be created or destroyed.
18.
A bottle is just able to rest on the sloping surface without falling over.
Where is the centre of gravity?
Where is the centre of gravity?
a)
A
b)
B
c)
C
d)
D
19.
A weightlifter lifts different weights through different heights.
When does he do the most work?
When does he do the most work?
a)
A
b)
B
c)
C
d)
D
20.
Which equation for calculating gravitational potential energy is correct?
a)
Ep = mg/h
b)
Ep = m/gh
c)
Ep = mgh
d)
Ep = gh/m
21.
A pin is squeezed between finger and thumb. Which statement is correct?
a)
The force of the pin is larger on the finger than on the thumb.
b)
The force of the pin is larger on the thumb than on the finger.
c)
The pressure of the pin is larger on the finger than on the thumb.
d)
The pressure of the pin is larger on the thumb than on the finger.
22.
A force is a applied to a long crowbar so as to move a large rock.
Which labelled arrow represents the smallest force needed to move the rock?
Which labelled arrow represents the smallest force needed to move the rock?
a)
A
b)
B
c)
C
d)
D
23.
A student places a ruler into a ripple tank containing a wave.
What can be measured with the ruler in this position?
What can be measured with the ruler in this position?
a)
amplitude of the wave
b)
the period of the wave
c)
the speed of the wave
d)
the wavelength of the wave
24.
A violin produces a note of frequency 256 Hz.
Which statement about the violin string is correct?
Which statement about the violin string is correct?
a)
It is 256 cm long.
b)
It has a wavelength of 256 m.
c)
It produces sound waves travelling at 256 cm/s.
d)
It vibrates 256 times each second.
25.
These terms are used in relation to waves.
1 amplitude
2 frequency
3 speed
4 wavelength
Which can be measured in metres?
1 amplitude
2 frequency
3 speed
4 wavelength
Which can be measured in metres?
a)
1 and 2
b)
1 and 4
c)
2 and 4
d)
3 and 4
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