simple machines

Question 1

Simple Machines

Answer 1

Machines with few or no moving parts that are used to make work easier.

Question 2

Wedge

Answer 2

Pushes materials apart

Question 3

Examples of Wedge

Answer 3

Axe

Question 4

Wheel and Axle

Answer 4

Makes it easy to move things by rolling them

Question 5

Examples of Wheel and Axle

Answer 5

Car

Question 6

Lever

Answer 6

Makes lifting weight easier by using a fulcrum to redirect force over a longer distance.

Question 7

Examples of Lever

Answer 7

See-saw

Question 8

3 Classes of Levers

Answer 8

Different types of levers categorized by the position of the fulcrum.

Question 9

1st Class Lever Examples

Answer 9

Pliers

Question 10

2nd Class Lever Examples

Answer 10

Wheelbarrow

Question 11

3rd Class Lever Examples

Answer 11

Fishing rod

Question 12

Inclined Plane

Answer 12

Makes it easier to move objects upward

Question 13

Examples of Inclined Plane

Answer 13

Highway or sidewalk ramp

Question 14

Screw

Answer 14

Turns rotation into lengthwise movement.

Question 15

Characteristics of Screw

Answer 15

Takes many twists to go a short distance and holds things together.

Question 16

Examples of Screw

Answer 16

Screws

Question 17

Pulley

Answer 17

Makes lifting things with a rope easier by redirecting force and the addition of additional pulleys.

Question 18

Examples of Pulley

Answer 18

Flag pole

Question 19

Why Use Simple Machines?

Answer 19

For the mechanical advantage of making something easier to do

Question 20

Complex Machines

Answer 20

Combining two or more simple machines to work together.

Question 21

Examples of Complex Machines

Answer 21

Car jack combines wedge and screw; crane or tow truck combines lever and pulley; wheelbarrow combines wheel and axle with a lever.