Compound Machines Quiz

What is a compound machine?

• A machine that uses only one simple machine to complete a task.

• A machine that is made up of two or more simple machines.

• A machine that can perform tasks without human intervention.

• A machine that operates only on electrical power.

Which of the following is an example of a compound machine?

• Lever

• Wheel and axle

• Bicycle

• Inclined plane

What simple machines make up a pair of scissors?

• Lever and wheel and axle

• Wedge and lever

• Screw and inclined plane

• Pulley and lever

Why do compound machines make work easier?

• They decrease the amount of effort needed to move an object.

• They increase the amount of work a person has to do.

• They can only perform tasks that simple machines cannot.

• They require electricity to operate.

What advantage does a compound machine offer over a simple machine?

• It is easier to build.

• It can perform more complex tasks by combining different types of motions and forces.

• It uses more energy, making it more powerful.

• It is smaller and more compact.

In a wheelbarrow, which simple machines are present?

• Lever and wheel and axle

• Inclined plane and screw

• Pulley and wedge

• Screw and lever

How does combining simple machines into a compound machine benefit engineers and inventors?

• It limits the design possibilities to only a few options.

• It makes the machines more expensive to produce.

• It allows for more versatile and efficient designs.

• It requires less understanding of physics.

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Which of the following is NOT a reason compound machines are used?

• To reduce the effort needed to do work.

• To increase the distance over which a force can be applied.

• To make tasks more time-consuming.

• To change the direction of a force.