Forces

Question 1

third class lever

Answer 1

the fulcrum is on the left and the effort is in the middle and the fulcrum is on the right (FEL, Broom, Rake)

Question 2

first class lever

Answer 2

fulcrum (middle) effort (left) load (right) EFL, hammer removing nail, scissors

Question 3

second class lever

Answer 3

Fulcrum (right) load (middle) effort (left) ELF, wheelbarrow, nutcracker

Question 4

force multipliers

Answer 4

increases the amount of for you can place on an object.

Question 5

load

Answer 5

the force exerted on a surface.

Question 6

speed multipliers

Answer 6

devices that increases the speed or distance travelled by, an object.

Question 7

terminal velocity

Answer 7

the speed when an object falling through a fluid (usually air) is no longer getting faster.

Question 8

newtons first law

Answer 8

An object at rest remains at rest, and an object in motion stays in motion at constant speed, unless acted by an unbalanced force.

Question 9

work

Answer 9

getting a job done

Question 10

inertia

Answer 10

a property of matter by which it remains at rest or in unchanging motion unless acted by some external force.

Question 11

newtons

Answer 11

is the measurement of force.

Question 12

weight

Answer 12

a measure of heaviness of an objects.

Question 13

mass

Answer 13

the measure of the amount of matter in an object

Question 14

magnetism

Answer 14

the force exerted by magnets when they attract or repel each other.

Question 15

friction

Answer 15

the force that resists motion when the surface of one object comes in contact with the surface of another.