0.000 s

It' i's revision time, take Physics - GCE O-level 2023

50/50 MCQs for:
GCE O-level 2023
Which of the following is a pair of scalar quantities?
Which of the following is not a contact force?
The gradient of velocity-time graph represents:

The variation of acceleration due to gravity (g) with time (t) can best be represented by which of the graphs in the figure?

A trolley with a ticker tape attached to it, is caused to run down a runway.

A section of tape produced by a ticker timer of known frequency is displayed in the figure.

The object is:

The form of energy stored in a car is:
A builder raises a bag of cement of mass 50kg onto a platform which is 3m high. The work done by the builder in joules is:
Which of the following energy sources are all renewable energy sources.
What are the constituents of the nucleus?
The half-life of a sample of a radioactive substance is the time taken for the:
An object is placed 20 cm from a diverging lens of focal length 10 cm. The image formed is:
In a vacuum, all electromagnetic waves have the same:
A pond 8 m deep appears to be only 6 m deep when viewed vertically from above. The refractive index of the water is:
Which of the following is true about a p-type semiconductor?
The electrical resistance of a metallic conductor is inversely proportional to its:
Alternating current is preferred to direct current for transmission of electrical power because:
Which of the following elements can dope silicon to produce a p-type semiconductor?

Which of the graphs in the figure best shows how the potential difference (V) across a metal conductor varies with the current (I) flowing through it?

The kWh is the unit of:

The figure shows a connection of three resistors of resistances 3Ω, 6Ω and 5Ω.

The resultant resistance across AB is:

Which of the following is NOT released by a decaying radioactive nucleus.
A car of mass 600 kg moving with a constant velocity of 20 m/s along a straight road is brought to rest in 40 s by applying the brakes. The average retarding force acting on the car during this time is:
Which of the following statements is an advantage of using a pressure pot to cook food?
When matter moves in a bulk and transfers heat from one point to another, the process is called:
The advantage of the double wheels of a heavy truck is to:

At which of the marked positions in the figure is the lowest effort applied to lift the wheelbarrow?

A tennis ball is thrown at a wall with a 6 m/s, and rebounds with a velocity of 4. What is the change in velocity in m/s?
The lower fixed point of a mercury-in-glass thermometer in kelvin scale is:
Water is used as a cooling liquid because:
The heat supplied to a substance during change of state goes to increase:
An object is charged by bringing a charged object close to it but not touching it. This process can be described as:
Which of the following electrical devices operates effectively using a soft magnetic material?
Repulsion is the surest test to confirm a magnet using another magnet because;.
Which property of waves affects the loudness of sound?
When, a vibrating object reaches resonance;.

Which of the graphs in the figure is correct for sin i (Y) plotted against sin r (X) for light moving from air into a rectangular glass block?

Two forces of magnitudes 3N and 4N are acting on a body. The maximum resultant force that can be obtained is:
The phenomenon of a wave which lead production of echo is called:
A transformer which has a laminated soft iron core is more efficient because:
The region round a magnet where an experiences a force is known as:
Heat from the sun reaches the earth through the process of:

The figure is the velocity-time graph of a moving body. The distance during the first 10 s is:

The figure shows a hydraulic system which may be used to lift a car. The hydraulic jack system is:

The figure shows a hydraulic system which may be used to lift a car.

Why is oil preferred to water in the jack system?

The figure shows a hydraulic system which may be used to lift a car.

The principle on which the above system functions is based on:

The figure shows a hydraulic system which may be used to lift a car.

The mechanical advantage of the defined as the ratio of:

The setup in the figure is an apparatus used to measure the specific heat capacity of a liquid.

The calorimeter is lagged in order to:

The setup in the figure is an apparatus used to measure the specific heat capacity of a liquid. The thermometer is used to:

The setup in the figure is an apparatus used to measure the specific heat capacity of a liquid.

The specific heat capacity of the liquid can be calculated using the formula:

The setup in the figure is an apparatus used to measure the specific heat capacity of a liquid. The stirrer is used to ensure that: