Simple Machines Test

A bicycle being pedaled moves because of

• gravity

• force

• magnetism

If less force is applied, an object will move

• faster

• higher

• slower

• at a steady speed

A lever is a simple machine made of

• a bar and a fulcrum

• a weel and axle

• two inclined planes

• a wheel with jagged edges

A simple machine made of a wheel and a rope is a

• bicycle

• pulley

• wheel and axle

• wedge

Simple Machines are helpful because...

• they are creative

• they make work easier

• they cause less friction

• they rely on gravity

Parts of animals' bodies that work as simple machines are

• eyes and noses

• whiskers and scales

• feathers and fur

• claws and teeth

What simple machine is similar to rabbits' claws that loosen and break apart the soil?

• Wedge

• Pulleys

• Wheel and axle

• Screw

Which of the following is NOT something that can push or pull an object without touching it?

• magnets

• static electricty

• gravity

• pulleys

What is friction?

• When two magnets are attracted to each other.

• When two objects rub together.

• When a simple machine is used.

• When you work against gravity.

What type of simple machine might be used to roll an object from the ground onto the back of a truck?

• Pulley

• Inclined Plane

• Screw

• Wedge