Chapter 9- Simple Machines

Question 1

Effort

Answer 1

force used to cause movement

Question 2

Fulcrum

Answer 2

The point around which a lever turns

Question 3

Load

Answer 3

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

Question 4

Lever

Answer 4

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

Question 5

Wedge

Answer 5

simple machine, called an inclined plane, that reduces the force required to cut through objects or stop them from moving

Question 6

Screw

Answer 6

curved inclined plane

Question 7

Inclined plane

Answer 7

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