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WorksheetsPhysics Form 4 Challenge 1
Total questions: 40
Worksheet time: 34mins
Which of the following values is equal to 470 pF?
4.7 × 10-10F
4.7 × 10-7F
4.7 × 102F
4.7 × 1011F
Which of the following power factor and it’s prefix is correct ?
10 -6 kilo
10 -3 mili
10 -2 hecto
10-1 deca
Which of the following quantities is a vector quantity?
Energy
Power
Force
Pressure
Hamid cycles at a velocity of 3.1 km h-1.
What is this velocity, in m s-1?
0.09
0.86
1.16
11.61
A rock on the moon is brought to the earth where the gravitational field is stronger. On the earth, the rock will have the same
Inertia and mass
Inertia and weight
mass and weight
Weight and acceleration
Diagram 1 shows two strips of ticker tapes which were attached to two moving trolleys X and Y.
Which statement is correct?
The time taken by both trolleys are the same
The distance travelled by both trolleys are the same
The velocity of both trolleys are the same
Diagram 5 is a displacement against time graph showing a motion of a toy car.
Which of the following parts of the graph shows that the toy car is stationary?
OP
PQ
QR
RS
Which object has the largest momentum?
Diagram below shows a box with a mass of 55 kg being dropped from a helicopter.
At the moment before touching the ground, the velocity of the box is 12 m s.-1.
The box stops 2 seconds after touching the ground.
What is the magnitude of the impulse force acted on the box?
660 N
330 N
122 N
110 N
Why are the front and rear sections of a car designed to crumple easily?
To increase impact time
To decrease momentum
To increase friction
To decrease impulse
Ali kicks a ball of mass 1.5 kg with a force of 50 N and the time of impact between his boot and the ball is 0.2 s. What is the change in momentum of the ball?
10 Ns
15 Ns
250 Ns
375 Ns
Diagram below shows two identical balls, P and Q, moving towards each other with a velocity of v and 2v respectively.
The collision between the two balls is an elastic collision.
Which statement is correct about the elastic collision?
The momentum of ball P before the collision
is equal to the momentum of ball Q before
the collision
The total momentum before the collision
is equal to the total momentum after the
collision
The kinetic energy of ball P before the
collision is equal to the kinetic energy of ball
Q before the collision
The total kinetic energy before the collision
is not equal to the total kinetic energy after
the collision
A brick falls from a height of 10 m.
Calculate the time taken for the brick to reach the ground.
0.5 s
0.7 s
1.0 s
1.4 s
When an object is in equilibrium of forces, the object
must be stationary
must move with a uniform velocity
is either stationary or moving with a uniform velocity
either moves with a uniform velocity or with a uniform acceleration
Newton's Universal Law of Gravitation states that the gravitational force between two objects directly proportional to the product of masses of the two objects and inversely proportional to
distance between two bodies
square of the product of the body's radii
square of the distance between the centres of the two bodies.
cube of the distance between the centres of the two bodies.
The force of gravity on a 50 kg woman is 500 N. The woman also exerts a gravitational force on the earth. How large a force is this?
0 N
245 N
500 N
980 N
The distance of Venus and Saturn from the sun are nearly 1011 m and 1012m respectively. Assuming that they move in circular orbits, their periodic times would be in the ratio of
0.10.1
100
1010
10,000
The period of geostationary artificial satellite is
24 hours
6 hours
48 hours
12 hours
The period of a satellite in a circular orbit of radius R is T. The period of another satellite in circular orbit of radius 4R is
8T
8T
2T
4T
Diagram below shows hot water being added to cold water.
Which of the following statements is correct if there are no heat losses to the surrounding?
Heat lost by hot water is less than heat gained
by cold water
Heat lost by hot water is greater than heat
gained by cold water
Heat lost by hot water is equal to heat gained
by cold water
What is the concept used in the measurement of human body temperature using a thermometer?
Specific heat capacity
Specific latent heat
Thermal equilibrium
Thermal convection
Thermal convection
Diagram below is a graph which shows the heating curve of water.
What is the effect of the heat absorbed by the water between point S and point T?
It weakens the forces between the water molecules
It breaks the bonds between the water molecules
It increases the kinetic energy of the water
molecules
It strengthens the bonds between the water
molecules
Which of the following ray diagrams is correct for a magnifying glass?
Which of the following graphs shows the relationship between pressure, P, and temperature, T, of a gas at constant volume?
Diagram below shows the condition of a plastic bottle which initially contains hot air, before and after being put into a basin of ice.
The above situation can be explained by
Boyle’s law
Pressure law
Charles’s law
Diagram below shows an object placed at O, in front of a concave mirror.
F is the focal point of the mirror.
What are the characteristics of the image formed?
Virtual and smaller than the object
Real and smaller than the object
Virtual and bigger than the object
Real and bigger than the object
Diagram below shows a boy standing in front of a plane mirror.
The boy moves 1 m backwards.
Calculate the distance between the boy and his image.
3m
4m
6m
8m
Diagram below shows the velocity-time graph of an object.
Which accelaration-time graph represents the same motion as the object?
Diagram below shows a ray of light passing into a glass block.
The refractive index of the glass is 1.54.
What is the angle of incidence?
19.7°
33.7°
54.7°
58.0°
Table below shows the refractive indices of water and glass.
Based on the information in Table above, which light ray, A, B, C or D, in Diagram below correct?
Which diagram shows a ray hitting a semicircular glass block at the critical angle, θ?
Diagram below shows the path of light from P to O.
The critical angle of water is 48°. If θ° = 48°, which is the correct path of light after passing through point O?
OR
OS
OT
OU
Diagram below shows a wave pattern on water.
Wavelength is the distance between the points
P and Q
P and R
Q and S
R and S
Diagram below shows a load being oscillated on a spring.
Based on Diagram above, which of the following displacement-time graphs represents oscillation of the load from P to Q and back to O?
Which of the following characteristics of waves, changes when the waves are reflected?
Direction of propagation
Wavelength
Frequency
Speed
Diagram below shows water waves propagating in an area of different depths.
Which of the following diagrams shows the propagation of the waves correctly?
In which diagram will destructive interferencen occur when the waves meet?
A radar transmit a signal towards an aeroplane.
The velocity of the signal is 3.0 × 108m s-1. After 4.0 × 10-3s, the radar detects the reflected signal.
What is the distance of the aeroplane from the radar?
2.4 × 106m
1.2 × 106m
6.0 × 105m
1.5 × 105m
Which of the following statements is true about electromagnetic waves?
They are longitudinal waves
They are waves that require a medium to travel
The velocity of the waves is influenced by the wavelength
They consist of both magnetic fields and electric fields
What is the correct relationship between the wave length of an electromagnetic radiation and the energy it carries?
