General Science Questions for Class 4

Lever, pulley, wedge, wheel, inclined plane and screw is/are an examples of?

1. Simple Machine
2. Compound Machine
3. Both A and B
4. None

A___is a stiff bar that rests on a support called a fulcrum which lifts or move loads.

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

Which simple machines is used in raising the flag?

1. Scissors
2. Pliers
3. Pulley
4. Wheels

A __ is an object with at least one slanting side ending in a sharp edge, which cuts material apart.

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

A ____ with a rod, called an axle, through its center lifts or moves loads.

1. Wheel
2. Pulley
3. Lever
4. Inclined Plane

An __ is a slanting surface connecting a lower level to a higher level.

1. Lever
2. Pulley
3. Inclined Plane
4. Screw

Which simple machine would stairs be an example of?

1. Pulley
2. Inclined Plane
3. Lever
4. Wheel

A ___ is an inclined plane wrapped around a cylinder, used to fasten objects.

1. Screw
2. Lever
3. Pulley
4. Wheel

Which type of machine is a bicycle and crane?

1. Compound Machine
2. Simple Machine
3. Both A and B
4. None

Which of the following is an example of compound machine?

1. Scissors
2. Pliers
3. Pulley
4. None