# Physics Mcqs No 2

There are 10 multiple choice questions.Choose the best option.Write all of your answers in a single comment. (like 1A,2B,3C...)

(1)What is represented by the gradient of a graph of force (vertical axis) against extension (horizontal axis)?

A) elastic limit

B) spring constant

C) stress

D) Young modulus

(2)The diagram shows a wire of diameter D and length L that is firmly clamped at one end between two blocks of wood. A load is applied to the wire which causes it to extend by an amount x.

By how much would a wire of the same material, but of diameter 2D and length 3L, extend when the same load is applied?

(6)There is a current of 10 mA in a conductor for half an hour. How much charge passes a point in the conductor in this time?

A) 0.3 C

B) 5 C

C) 18 C

D) 300 C

(1)What is represented by the gradient of a graph of force (vertical axis) against extension (horizontal axis)?

A) elastic limit

B) spring constant

C) stress

D) Young modulus

(2)The diagram shows a wire of diameter D and length L that is firmly clamped at one end between two blocks of wood. A load is applied to the wire which causes it to extend by an amount x.

By how much would a wire of the same material, but of diameter 2D and length 3L, extend when the same load is applied?

(3)Which observation indicates that sound waves are longitudinal?

A Sound can be reflected from a solid surface.

B Sound cannot be polarised.

C Sound is diffracted around corners.

D Sound is refracted as it passes from hot air to cold air.

(4)To produce a stationary wave, two waves must travel in opposite directions through the same space.

Which statement about the properties of the two waves must also be true?

A The waves must have equal frequency, but a different speed and wavelength.

B The waves must have equal speed, but a different wavelength and frequency.

C The waves must have equal speed, frequency and wavelength.

D The waves must have equal wavelength, but a different speed and frequency.

(5)An iron wire has length 8.0 m and diameter 0.50 mm. The wire has resistance R. A second iron wire has length 2.0 m and diameter 1.0 mm. What is the resistance of the second wire?A Sound can be reflected from a solid surface.

B Sound cannot be polarised.

C Sound is diffracted around corners.

D Sound is refracted as it passes from hot air to cold air.

(4)To produce a stationary wave, two waves must travel in opposite directions through the same space.

Which statement about the properties of the two waves must also be true?

A The waves must have equal frequency, but a different speed and wavelength.

B The waves must have equal speed, but a different wavelength and frequency.

C The waves must have equal speed, frequency and wavelength.

D The waves must have equal wavelength, but a different speed and frequency.

(6)There is a current of 10 mA in a conductor for half an hour. How much charge passes a point in the conductor in this time?

A) 0.3 C

B) 5 C

C) 18 C

D) 300 C

(7)An experiment in which Î±-particles were deflected by a gold foil produced new insights into the structure of the atom.

Which conclusion can be drawn from the results of the experiment?

A Atomic nuclei occupy a very small fraction of the volume of an atom.

B Electrons orbit the atomic nucleus.

C Some atoms of the same element contain different numbers of neutrons.

D The atomic nucleus contains protons and neutrons.

(8)A man weighs 240 N on Mars where the acceleration of free fall g is 4 m s–2. On the Moon, g is 2 m s–2.

Which statement is correct?

A The man has a mass of 60 N on Mars

B The man has a mass of 120 kg on the moon,

C The man weighs 120 N on the Moon.

D The man weighs 240 N on the Moon

(9)The diagram shows a resultant force and its horizontal and vertical components

The horizontal component is 20.0 N and Î¸ = 30°. What is the vertical component?

A 8.7 N

B 10.0 N

C 11.5 N

D 17.3 N

(10)Which statement about Newton’s laws of motion is correct?

A The first law follows from the second law.

B The third law follows from the second law.

C Conservation of energy is a consequence of the third law.

D Conservation of linear momentum is a consequence of the first law.

Interested in Chemistry ?

Take Chemistry Test No 2

Which conclusion can be drawn from the results of the experiment?

A Atomic nuclei occupy a very small fraction of the volume of an atom.

B Electrons orbit the atomic nucleus.

C Some atoms of the same element contain different numbers of neutrons.

D The atomic nucleus contains protons and neutrons.

(8)A man weighs 240 N on Mars where the acceleration of free fall g is 4 m s–2. On the Moon, g is 2 m s–2.

Which statement is correct?

A The man has a mass of 60 N on Mars

B The man has a mass of 120 kg on the moon,

C The man weighs 120 N on the Moon.

D The man weighs 240 N on the Moon

(9)The diagram shows a resultant force and its horizontal and vertical components

The horizontal component is 20.0 N and Î¸ = 30°. What is the vertical component?

A 8.7 N

B 10.0 N

C 11.5 N

D 17.3 N

(10)Which statement about Newton’s laws of motion is correct?

A The first law follows from the second law.

B The third law follows from the second law.

C Conservation of energy is a consequence of the third law.

D Conservation of linear momentum is a consequence of the first law.

Interested in Chemistry ?

Take Chemistry Test No 2

Physics Mcqs No 2
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