Simple Machines

Question 0

What is a wheel and axle?

Answer 0

The axle is a rod that goes through the wheel. This lets the wheel turn. It s easy to move things fromplace to place with wheeland axles.

Question 1

What is an inclined plane?

Answer 1

A simple machine with a flat surface and one end higher than the other. You can use this simple machine to move an object to a higher or lower place.

Question 2

What is a wedge?

Answer 2

It is used to push two objects apart. It is made up of two inclined planes. These planes meet to form a sharp edge. This edge can split things apart.

Question 3

What are examples of an inclined plane?

Answer 3

ramp and a slide

Question 4

What are some examples of a wheel and axle?

Answer 4

Doorknob, car, wheels, screwdriver, wrench, gears in watches and clocks, and bicycles

Question 5

What are some examples of a wedge?

Answer 5

Nail, axe, saw, doorstopper, knife and a chisel.

Question 6

What is a lever?

Answer 6

A board or a bar that rests on a turning point. The turning point is called a fulcrum. An object that a lever moves is called the load. The closer the object is to the fulcrum, the easier it is to move.

Question 7

What is a pulley?

Answer 7

This simple machine is made up of a wheel and a rope. The rope fits on the groove of a wheel. One part of the rope is attached to the load. When you pull on one side of the pulley, the wheel turns and the load will move. Pulleys let you move loads up, down and sideways.

Question 8

What are some examples of a lever?

Answer 8

bottle opener, scissors, crowbar, seesaw, rake, wheelbarrow, crowbar

Question 9

What are some examples of a pulley?

Answer 9

flagpole, clothesline, ski left, sailboat, blinds

Question 10

What is a screw?

Answer 10

A simple machine that is made from another simple machine. It is actually an inclined plane that winds around itself. A screw has ridges and is NOT smooth like a nail. Some screws are used to raise and lower things. They are alos used to hold things together.

Question 11

What are some examples of some uses for a screw?

Answer 11

Used to hold things together and (like in a carjack) they are used to raise and lower things.

Question 12

What is force?

Answer 12

A push or pull

Question 13

What is a load?

Answer 13

The amount you are trying to lift or move

Question 14

What is work?

Answer 14

The result of a force moving an object

Question 15

What is a simple machine?

Answer 15

A machine made of one or two parts

Question 16

What is a compound machine?

Answer 16

A machine made of one or two simple machines.

Question 17

What is a complex machine?

Answer 17

A machine made up of many simple and compound machines.

Question 18

Which simple machine is used to move objects to a higher or lower place?

Answer 18

inclined plane

Question 19

Which simple machine uses a fulcrum?

Answer 19

lever

Question 20

Which simple machine moves thing a distance from place to place?

Answer 20

wheel and axle

Question 21

Which simple machine moves objects to hard to reach places?

Answer 21

pulley

Question 22

Which simple machine splits things apart?

Answer 22

wedge

Question 23

Which simple machine holds objects together?

Answer 23

screw