Simple Machines Quiz

What is a simple machine?

• A mechanical device that changes the direction or size of a force.

• A type of food creator.

• A type of computer game.

• A complicated system of gears and levers

Name three types of simple machines.

• screw, wheel, gear

• hammer, saw, drill

• lever, pulley, inclined plane

• knife, fork, spoon

What is the purpose of a lever?

• To create electricity

• To write neatly

• To lift or move objects

• To cook food evenly

How does an inclined plane make work easier?

• It splits an object into two pieces by changing the direction of the force.

• It is a pole surrounded by an inclined plane.

• It lessens the amount of effort needed to lift an object from one height to another.

• You can roll it around, instead of moving it with your hands.

Give an example of a pulley in everyday life.

• Raising a flag on a flagpole

• Walking up a flight of stairs

• Turning a doorknob

• Using a spoon to eat soup

Explain how a wheel and axle work together as a simple machine.

• A wheel and axle work together by creating a mechanical advantage for lifting or moving heavy objects.

• A wheel and axle work together by providing a comfortable seat for sitting.

• A wheel and axle work together by creating a musical sound when they rotate.

• A wheel and axle work together by creating electricity for electronic devices.

What is the difference between a fixed pulley and a movable pulley?

• A fixed pulley doesn't move, while a movable pulley moves on a string with the load.

• A fixed pulley is smaller in size compared to a movable pulley.

• A fixed pulley is used for lifting heavy loads, while a movable pulley is used for light loads.

• A fixed pulley moves on a string with the load, while a movable pulley doesn't move at all.

Describe the function of a wedge as a simple machine.

• A wedge is used to split, lift, or hold an object.

• A wedge is used to measure weight.

• A wedge is used to move an object from one height to another.

• A wedge uses a fulcrum to lift or move a heavy object.

Why are simple machines important in our daily lives?

• They are only used in construction, and so don't matter to ordinary people.

• They make work harder by making us to use more force over a shorter distance.

• They make work easier by allowing us to use less force over a greater distance.

• What's a simple machine?

What is a gear?

• Two inclined planes put together in order to split objects apart.

• A wheel and axle with a rope.

• A wheel and axle with "teeth".

• A pole with an inclined plane wrapped around it.