Physics Part 1 Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Physics. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - In an electric circuit, a fuse is used to …

A - Maintain the flow of current

B - Indicate the flow of current

C - Break the circuit when excessive current flows

D - store the current

Answer : C

Explanation

N/A

Q 2 - If a person stands in front of two plane mirrors, which are inclined at an angle of 600, then how many images he will see?

Answer : C

Explanation

N/A

Q 3 - The X-rays are produced when …

A - The electrons collide with the atoms and nuclei of the targeted metal

B - The protons collide with the atoms and nuclei of the targeted metal

C - The neutrons collide with the atoms and nuclei of the targeted metal

D - The positrons collide with the atoms and nuclei of the targeted metal

Answer : A

Explanation

Discovered in 1895 by Wilhelm Conrad Roentgen, X-ray is a very energetic form of electromagnetic radiation; it is used to take image of a human body.

Q 4 - Sound’s travelling speed is lowest in …

Answer : B

Explanation

The speed of sound in air is about 343 m/s.

Q 5 - If container filled with gas put into a fast moving train then the temperature of the gas will …

A - Increase

B - Decrease

C - Remain same

D - Depend on the type of gas

Answer : C

Explanation

N/A

Q 6 - Consider the following statements:

1. Resistance thermometers are typical sensors, which is used to measure temperature.

2. Resistance thermometer is made up of pure material such as platinum, nickel, or copper.

Choose the correct answer from the codes given below:

Answer : C

Explanation

Resistance thermometer is also known as resistance temperature detectors (RTDs).

Q 7 - The devices, which have infinite electrical resistance are known as …

Answer : B

Explanation

Insulator is a substance or device which does not readily carries electricity.

Q 8 - A fuse is used in an electric circuit to …

A - Break the circuit when excessive current flows through the circuit

B - Break the circuit when power gets off

C - Indicate if the current is fluctuating

D - Complete the circuit for flow of current

Answer : A

Explanation

Fuse saves from a big damage that might occur because of the excessive current flows.

Q 9 - How does sound travel from the origin point to listener?

A - Through air

B - Because high pressure of source (such as speaker)

C - Through transmission process

D - Through the vibration of particles/objects (falling in the path)

Answer : D

Explanation

One particle vibrates other particles and so on and so forth; likewise, sound travel from the source to listener.

Q 10 - The major function of a radiator in the car is …

A - Keep engine cool

B - Increase mileage

C - Increase the speed

D - Increase the life of engine

Answer : A

Explanation

N/A

Q 11 - Transformer is used in electricity to …

A - Increase voltage

B - Decrease voltage

C - Increase efficiency

D - A & B

Answer : D

Explanation

There are two types of transformer namely step up (to increase voltage) and step down (to decrease voltage).

Q 12 - An electric bulb transforms …

A - Solar energy into electrical energy

B - Electrical energy into light energy

C - Electrical energy into light and heat energy

D - Chemical energy into electrical energy

Answer : C

Explanation

N/A

Q 13 - Electric current is scalar because …

A - It has only magnitude

B - It has only direction

C - It has sometimes magnitude and sometimes direction

D - It has both magnitude and direction, but does not follow triangle rule

Answer : D

Explanation

N/A

Q 14 - Calliper measures …

A - Altitude

B - Dimension

C - Speed and pressure of wind

D - Wind force

Answer : B

Explanation

Calliper is an instrument that measures the outside and inside dimension of a body.

Q 15 - Which among the following waves possess the lowest frequency?

Answer : B

Explanation

N/A

Q 16 - Consider the following statements:

1. Value of gravity force decreases with height or depth from earth’s surface.

2. The value of gravitational force is maximum at equator.

Choose the correct answer from the codes given below:

Answer : A

Explanation

The value of gravitational force is maximum at poles.

Q 17 - Consider the following statements:

1. If gravitational force is negligible, in equilibrium condition, pressure is same at all points in a liquid.

2. If an external pressure is applied to the fluid, it gets transmitted undiminished in every direction.

Choose the correct answer from the codes given below:

Answer : C

Explanation

This law was established by French mathematician Blaise Pascal.

Q 18 - Who among the following had discovered the nuclear fission first?

Answer : D

Explanation

In 1938, the German scientist Otto Hahn and Fritz Strassmann discovered the nuclear fission.

Q 19 - Who among the following has first used radio waves for communication?

Answer : C

Explanation

In the mid-1890s, Guglielmo Marconi first used radio waves for the communication.

Q 20 - Consider the following statements:

1. A piece of blotting paper soaks ink because the pores of the blotting paper serve as capillary tubes.

2. The oil in the wick of a lamp rises due to capillary action of threads in the wick.

Choose the correct answer from the codes given below:

Answer : C

Explanation

N/A

physics_part1_online_quiz.htm