Pulleys

Q.

Differentiate between wheel and axle and pulley.

Q.

Pulley is an example of complex machine.

1. LEVER I

2. LEVER II

Q.

A …………is an example of wheel and axle.

Q.

What kind of machine is the wheel of a flagpole?

1. Pulley

2. Wedge

3. Lever

4. Inclined plane

Q. Define simple machines with examples

Q.

The compound or block and tackle system uses___.

1. multiple fixed

2. movable pulley

3. a single movable pulley

4. multiple fixed and movable pulleys

Q.

A person uses a rope and a pulley for taking out water from an open well. Can this be called as an application of science?

1. Yes

2. No

Q. For a simple pulley, the direction of movement of the load is in the same direction of the effort.

1. False

2. True

Q. ___________is used to reverse the direction of force applied.

1. String
2. Pulley
3. Wedge
4. Lever

Q.

A pulley is used to lift heavy objects by changing the magnitude of force.

1. True
2. False

Q.

Pulley is a ________ .

1. LEVER I

2. LEVER III

3. LEVER II

4. Both B and C

Q.

Find the odd one out.

a ramp, a gang plane, a staircase, steering wheel

Q.

A gangplank is an example of a simple machine, called__________.

Q.

What is this system called?

1. Wheel
2. Disk
3. Pulley
4. String

Q.

A man is using a machine in which he is applying force in downward direction and the weight is pulled in upward direction. He is using a ___ .

Q.

Machine helps us to apply the force at a ________ point.

Q.

List the daily life situations where you use simple machines

Place: In Bathroom

Situation:

Simple Machine:

Q.

Which of the following should be used to lift a heavy steel cupboard to the fourth floor of the building?

1. Lever

2. Inclined plane

3. Wedge

4. Pulley

Q. For which work energy of flowing water is used in ancient times

Q. Write the uses of the following simple machines:

1. Inclined plane
2. Wedge
3. Screw
4. Wheel and axle [4 Marks]

Q. Pulleys can change the direction of applied force.

1. False
2. True

Q. Which among the following simple machines is used for lifting water from well?

1. Inclined plane
2. Wedge
3. Lever
4. Pulley

Q. A single fixed pulley can be used as a force multiplier.

1. True
2. False

Q.

What kind of machine is used in a flagpole?

1. Pulley

2. Lever

3. Wedge

4. Inclined plane

Q. A single pulley acts as force multiplier.

1. False
2. True