If we release a magnet held in out hand, it falls to the ground. The force which makes the magnet fall down is an example of:

A. Balanced force

B. Unbalanced force

C. Magnetic force

D. Muscular force

‘When a hanging carpet is beaten with stick, the dust particles start coming out of it’. This phenomenon can be best explained by making use of:

A. Newton’s third law of motion

B. Newton’s law of gravitation

C. Newton’s first law of motion

D. Newton’s second law of motion

A water tanker filled up to two-thirds of its tank with water is running with a uniform speed. When the brakes are suddenly applied, the water in its tank would:

A. Move backward

B. Move forward

C. Rise upwards

D. Remain unaffected

The inertia of a moving object depends on:

A. Momentum of the object

B. Speed of the object

C. Mass of the object

D. Shape of the object

When a rubber balloon held between the hands is pressed, its shape changes. This happens because:

A. Balanced forces act on the balloon

B. Unbalanced forces act on the balloon

C. Frictional forces act on the balloon

D. Gravitational forces act on the balloon