Chapter 9 Simple Machines

Question 1

Fulcrum

Answer 1

Point around which a lever turns

Question 2

Load

Answer 2

Force, such as the weight of an object, resisting motion against which a lever works

Question 3

Effort

Answer 3

Force used to cause movement

Question 4

Inclined plane✈️

Answer 4

Simple machine that uses sloping surfaces to reduce the effort required for a task

Question 5

Lever

Answer 5

Simple machine usually consisting of a long, rigid object that moves around a turning point when a force is applied

Question 6

Wheel and axel

Answer 6

lever that can rotate. The effort applied to the outside of the wheel produces a greater force on the axle because the effort is moved over a longer distance

Question 7

Pulley

Answer 7

A pulley is a special type of wheel and axle that makes it easier for you to lift a load. The wheel has a groove around it so that a rope or cable can be passed over or under it.

Question 8

Block and tackle

Answer 8

system of pulleys in which there are both fixed and moving pulleys

Question 9

Transfer (energy)

Answer 9

move energy from one object to another using simple machines

Question 10

Transform (energy)

Answer 10

change one form (of energy) into another

Question 11

Gears

Answer 11

toothed wheel that can turn other toothed wheels.

Question 12

Driving gear

Answer 12

gear that causes another to move.

Question 13

Driven gear

Answer 13

gear that causes another to move.