Question 1

When a body is stationary,

Accepted Answer

the combination of forces acting on it balances each other.

Answer

the body is in vacuum.

Answer

there is no force acting on it

Question 2

A monkey is climbing up a rope. The tension in the rope must be

Accepted Answer

equal to the force applied by the monkey on the rope.

Answer

greater than the force applied by the monkey on the rope.

Answer

less than the force applied by the monkey on the rope.

Question 3

If the applied force is doubled, the coefficient of friction is ____.

Accepted Answer

not changed.

Answer

halved

Answer

tripled

Answer

doubled

Question 4

If the force of gravitational attraction is least at the equator, where will it be profitable to purchase 1kg sugar?

Accepted Answer

at equator

Answer

at 40 degrees latitude

Answer

at poles

Answer

at 45 degrees latitude

Question 5

Fermi is a unit of?

Accepted Answer

length

Answer

time

Answer

mass

Answer

electric flux

Question 6

The horizontal component of a 10N force inclined at 30 degrees to the vertical is?

Accepted Answer

5N

Answer

8.66N

Answer

10N

Answer

2.5N

Question 7

Diamagnetic materials are substances that?

Accepted Answer

are repelled by a magnetic field

Answer

create a strong magnetic field

Answer

are attracted by a magnetic field

Answer

have double magnetism

Question 8

The image a camera forms on the film is always...

Accepted Answer

real

Answer

virtual

Answer

erect

Question 9

The wavelength of light plays NO role in _____.

Accepted Answer

polarization

Answer

interference

Answer

diffraction

Answer

resolving power

Question 10

Which of the following is needed to charge a secondary cell?

Accepted Answer

a DC current

Answer

fresh electrolyte

Answer

an AC current

Answer

heating

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