Simple Machine

A machine with few or no moving parts is called a ______.

• machine

• compound machine

• simple machine

• work

Which type of simple machine would be found on the bottom of a wagon?

• a pulley

• a screw

• a wedge

• a wheel and axle

Which  simple machine is found on the head of an ax?

• wedge

• lever

• pulley

• screw

The seesaw is an example of which simple machine?

• incline plane

• wedge

• lever

• pulley

Which of the following is a type of simple machine?

• Lever

• Engine

• Battery

• Circuit

Answer explanation

A lever is a type of simple machine that helps lift or move loads with less effort. Unlike an engine, battery, or circuit, which are more complex systems, a lever operates on the principle of mechanical advantage.

What simple machines are found in the following?

a

b

c

Screw, wedge, and wheel & axle

Wedge, wheel & axle

Lever, wedge and wheel & axle

What type of simple machine is a ramp?

• Lever

• Inclined plane

• Pulley

• Screw

Answer explanation

A ramp is classified as an inclined plane, which is a flat surface tilted at an angle to help lift objects with less effort. This makes it easier to move heavy items upward compared to lifting them straight up.

What type of simple machine is used in a pair of tongs?

• Pulley

• Lever

• Wheel and axle

• Inclined plane

Answer explanation

Tongs operate as a lever, where the pivot point allows the user to apply force on one end to grip objects on the other end. This makes 'lever' the correct choice for the type of simple machine used in tongs.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What type of simple machine is a seesaw?

• Inclined plane

• Lever

• Pulley

• Wheel and axle

Answer explanation

A seesaw is a type of lever, which consists of a rigid bar that pivots around a fulcrum. It allows for the lifting of one side when weight is applied to the other, demonstrating the principles of leverage.

A slide is an example of a/an ​ (a)   . A doorknob is an example of a/an ​ (b)   . A bottle cap is an example of a/an ​ (c)   ​ . A hammer is an example of a/an ​ (d)   .

• inclined plane

• wheel & axle

• screw

• lever

• pulley

• wedge