FORCE AND ITS EFFECTS

Pulling water from a well using a rope and pulley is an example of

• consequential force of friction.

• contact force.

• non-contact force.

• consequential force of tension.

The value of the gravitational constant G on Earth is ____.

• 9.8 m/s²

• 98 m/s²

• 9.8 mm/s²

• 9.8 km/s²

Pick the incorrect statement from the options given below:

• The force of push acts through a rigid connector.

• The force of push can move a stationary object.

• The force of push can act through space.

• The force of push will move the object away from us.

If a ball weighs 49 N on the earth’s surface, what is its mass?

• 50 kg

• 500 g

• 500 mg

• 5 kg

What type of force is shown in the picture below?

• Mechanical force

• Muscular force

• Gravitational force

• Electrical force

Pick the correct effect of force from the list given below:

• Force will always alter the mass of objects.

• Force can never make a stationary object move.

• Force can change the direction or can slow down a moving object.

• Force will always pull an object towards us.

“Force can make moving objects move faster”- Find out the correct example to prove this effect from the list given below.

• Applying the brakes in a moving car.

• Pressing down on the accelerator of a moving car.

• Switching off the engine of a moving car

• All of the above.

Which effect of force does the picture below explain?

• Force can change the shape of objects.

• Force can make a stationary object move.

• Force cannot alter the mass of an object.

• Force will stop a moving object.

Match the following:

• {i-I, ii-II, iii-III}

• {i-II, ii-III, iii-I}

• {i-II, ii-I, iii-III}

• {i-III, ii-II, iii-I}

The force generated by machines is called_______ force.

• muscular

• electrical

• mechanical

• spinning