Science Question Answer (1 Marks)

One student says that water exerts pressure on the bottom of the bucket but another student says that water exerts pressure on the sides of the bucket. What would you like to say?

Can a liquid exert pressure upwards?

Which force can be used to gather iron pins scattered on the floor?

What substance present in our body balances the atmospheric pressure acting on us?

A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad (Ignore the frictional force due to air resistance).

Can a liquid exert pressure sideways?

Give one example where force changes the speed of a moving object.

Which force do the animals apply while moving, chewing and doing other activities?

What is common in the working of the devices such as a drinking straw, a syringe, a dropper and a rubber sucker?

Give one example where force moves a stationary object.

Why does the shape of an ointment tube change when we squeeze it?

What is the push or pull on an object known as?

What name is given to the force acting on a unit area of an object?

State one example where force stops a moving object.

Name the force which always opposes motion.

Two tiny holes are made in a plastic bucket, one near the middle part and the other just above bottom when this bucket is filled with water, the water rushes out from the bottom hole much faster than from the upper hole. What conclusion do you get from this observation?

What is the unit of force?

Give one example where force changes the shape of an object.

Which force makes a rolling ball stop on its own?

Name the quantity whose unit is 'Newton' (N).

What conclusion do you get from the observation that a fountain of water is created at the leaking joint of pipes of the main water supply line?

Name the quantity whose one of the units is Pascal (Pa)?

Where will the atmospheric pressure be greater-at ground level or at the top of high mountain?

A small device pulls iron nails from a distance. Which type of force is involved in this process?

Explain why, water comes out more slowly from an upstairs tap than from a similar tap downstairs.

Name the substance whose weight produces atmospheric pressure.

Give one example where force changes the direction of a moving object.

What type of pressure is involved in the filling of a liquid in a syringe?

When a ball is dropped from a height, its speed increases gradually. Name the force which causes this change in speed.

When a plastic pen is rubbed in dry hair, it attracts tiny pieces of paper. Which force is involved in this process?

What happens to the springs of a sofa when we sit on it ?