Science Exams Revision

What is the fixed point where a lever turns or pivots?

• load
• work
• fulcrum
• screw

What type of simple machine is shown here?

• Pulley
• Wheel and Axle
• Lever
• Wedge

The ______________ is a flat surface that is raised so one end is higher than the other.

• inclined plane

• lever

• pulley

• wedge

A ________________ is a combination of two or more

simple machines. Examples include scissors, wheelbarrow,

and a bicycle.

• compound machine

• quarter machine

• simple machine

• complex machine

Which is a characteristic of a simple machine?

• They run on electricity.
• They take a long time to make.
• They have few or no moving parts.
• They are not very large.

Which of the following does a simple machine do?

• allows the users to apply less force over a longer distance
• reduce the amount of force needed to do work
• change the direction of the applied force
• all of the above

The man is using which simple machine to enable him to lift 200 km?

• wheel and axle
• pulley
• wedge
• screw

This is an example of what simple machine?

• pulley
• lever
• screw
• inlined plane

This is an example of what simple machine?

• pulley
• wedge
• inlined plane
• screw

Which of the following is true for the picture?

• elephant is the fulcrum, mouse is the effort, triangle is the load
• mouse is the fulcrum, triangle is the effort, elephant is the load
• triangle is the fulcrum, mouse is the effort, elephant is the load