Force Motion

Page
6

Slide 66

Which hill would you slide down the fastest?

hill A

hill B

hill C

It would take the same time to slide down all of the hills.

Slide 67

Projectile Motion

seconds

0

2

1

3

Velocity (m/s)

forward downward

0

50

9.8

19.6

29.4

39.2

Slide 68

Projectile

Motion

seconds

0

2

1

3

Velocity (m/s)

forward downward

0

50

9.8

19.6

29.4

39.2

49

48

47

46

Slide 69

Simple Machines and work

Lever

Inclined plane

Pulley

Wedge

Screw

Wheel and axle

Slide 70

Simple Machines

Pulley

Wheel & Axle

Lever

Inclined plane

Screw

Wedge

Gear

Slide 71

Slide 72

Simple Machines

Pulley

Wheel & Axle

Lever

Inclined plane

Screw

Wedge

Gear

Slide 73

Which activity involves the use of a simple machine?

riding on a seesaw

flying a kite

listening to a radio

skiing down a hill

Slide 74

Wheel/Axle

Pulley

Wheel & Axle

Lever

Slide 75

Simple Machine

A mechanism that lowers the amount of force needed to do work, by increasing the distance.

Slide 76

On which simple machine is a fulcrum found?

pulley

wheel

axle

lever

Slide 77

Work =

Force

Distance

x

ALL Simple Machines work the same way

Slide 78

1 meter

2 meters

Lever action

Force=13 N

Force= ?

Slide 79

Mechanical Advantage

3 meters

9 meters

Mechanical

Advantage= final distance

starting distance

Slide 80