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WorksheetsSc Physics Paper 1.1
Total questions: 20
Worksheet time: 40mins
A wooden box is pushed across a rough surface with constant speed of 2 m/s. Which statement is correct?
The frictional force decreases as the block moves at constant speed.
The frictional force increases as the block moves at constant speed.
The frictional force is equal to the pushing force.
The frictional force is less than the pushing force.
When solid A of mass 5 g is immersed in a measuring cylinder with water, it displaces the same volume of water as solid B of mass 10 g. What can be deduced about the densities of solids A and B?
Both A and B have the same density.
Density of A is half of B.
Density of A is four times that of B.
Density of A is twice of B.
Consider a thin rectangular wooden ruler. What happens to the position of the centre of gravity if a small piece of the wood gets chipped off at one corner of the ruler?
It cannot be determined.
It will move away from the chipped corner.
It will move towards the chipped corner.
It will not shift.
Which one of the following statements about the pressure caused by a force acting on an area, is not correct?
A larger area will produce a smaller pressure.
As the area gets smaller, the pressure increases.
The greater the area, the greater the pressure.
The greater the force, the greater the pressure.
A car is accelerating on a level road and acquires a velocity twice of its initial velocity. What happens to the gravitational potential energy of the car during this process?
It becomes half of the initial gravitational potential energy.
It becomes twice of the initial gravitational potential energy.
It becomes 4 times the initial gravitational potential energy.
It does not change.
Some oxygen gas is contained in a sealed container that has a constant volume. What will happen to the oxygen molecules when the gas is heated?
They will expand.
They will become denser.
They will move closer to each other.
They will move more quickly.
A box of weight 5 N is pushed along the table surface with a 4 N force. It moves a distance of 2 m along the table. What is the work done on the box?
2 N
4 N
8 N
10 N
Which of the following shows in descending order, the kinetic energy of a substance in different states?
gas, liquid, solid
gas, solid, liquid
solid, gas, liquid
solid, liquid, gas
Radiation is the transfer of heat by means of ……………………..
electrical wave.
electromagnetic waves.
magnetic wave.
sound waves.
What is meant by the term wavefront?
the distance between successive peaks of wave
the distance between the trough and peak of a wave
a line joining points along the peak of a wave
a line joining the trough and peak of a wave
What are the characteristics of an image formed by a plane mirror?
real, upright, diminished
real, upright, same size
virtual, upright, same size
virtual, upright, diminished
The diagram shows a ray of light going into a right-angled prism. What is the critical angle for the light in the glass?
less than 40o
equal to 40o
greater than 40o
none of the above
What is the name of the electromagnetic wave that can be seen?
gamma rays
microwaves
x-rays
visible light
A wave has a frequency of 4 Hz and a wavelength of 250 mm. What is the velocity of the wave?
0.1 m/s
1 m/s
10 m/s
1000 m/s
Object P is charged negatively by rubbing it with object Q. What happened during this process?
object P loses electrons
object P gains electrons
object P loses protons
object P gains protons
An electric kettle uses energy at the rate of 64 W with a 8 V supply. How much charge passes through the lamp in 3.0 seconds?
8 C
24 C
192 C
1536 C
The diagram shows part of an electrical circuit. What is the total current flowing through the circuit?
2 A
4 A
6 A
8 A
A light bulb is marked 240 V, 60 W. How many such light bulbs can be connected in parallel in a lighting circuit which is protected by a 5 A fuse?
4
10
20
40
To find the depth of water beneath a ship, a pulse of sound is sent into the water. The time taken to receive the echo is received is 0.6 s. How far beneath the ship is the sea bed? (The speed of sound in water is 1500 ms-1).
450 m
900 m
2500 m
5000 m
