Simple Machines Review

Which simple machine is made of a bar that pivots on a fixed support or fulcrum?

• inclined plane

• lever

• pulley

• screw

Which simple machine is made with a wheel attached to an axle and both parts rotate together?

• screw

• wedge

• wheel and axle

• inclined plane

Which simple machine is made with a pulled rope over a wheel that changes the direction of the force?

• lever

• wheel and axle

• screw

• pulley

Which simple machine is a flat surface raised at an angle?

• inclined plane

• screw

• pulley

• wedge

Which simple machine is two inclined planes put together?

• screw

• lever

• pulley

• wedge

Which simple machine is a spirally grooved solid cylinder with an inclined plane wrapped around it?

• wedge

• pulley

• screw

• inclined plane

Which is the following is an example of a first class lever?

• seesaw

• baseball bat

• ramp

• door stopper

In a wheel and axle, when the axle moves faster than the wheel, the the work _____________.

• becomes harder

• becomes easier

Tags

NGSS.MS-PS3-4

Which machine would be best to use if you wanted to move a very heavy load?

• screw

• inclined plane

• wedge

Tags

NGSS.MS-PS2-2

Which of the following is not an example of a lever?

• wheelbarrow

• seesaw

• ramp

• baseball bat