Welcome to

1
Welcome to
Laws of Motion
Jeopardy
2
Laws of Motion Jeopardy
Newtons Third Law
Horizontal and Vertical Motion
Math and Graphs
Newtons First Law
Newtons Second Law
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
Final Jeopardy
3
Newtons First Law 100

• Question-- What is Newtons first law?

4
Newtons First Law 100

• Answer-- A body in motion tends to stay in
  motion, a body at rest tends to stay at rest

5
Newtons First Law200

• Question-- What will a moving object do if no
  force acts upon it?

6
Newtons First Law200

• AnswerContinue moving with a constant velocity

7
Newtons First Law300

• Question-- What will happen to a penguin figurine
  that starts moving 30 m/s on a frictionless
  surface

8
Newtons First Law300

• Answer--The penguin will continue to move at 30
  m/s

9
Newtons First Law400

• Question-- What must happen if a body is to
  change velocity?

10
Newtons First Law400

• Answer-- A force must act upon the object

11
Newtons First Law500

• Question-- What is the name of the property that
  causes a body to maintain constant motion

12
Newtons First Law500

• Answer--Inertia

13
Newtons Second Law 100

• Express Newtons second law as an equation

14
Newtons Second Law100

• Answer-- Fma

15
Newtons Second Law200
mass one
mass one

• If mass one is double mass two, and I want mass
  one and mass two to accelerate at the same rate,
  then the force on mass one must be _____ the
  force on mass two

16
Newtons Second Law200

• Answer-- double

17
Newtons Second Law300

• Question-- If the applied force is 25 N and the
  mass is 5 kg then what is the acceleration?

25 N
5 kg
18
Newtons Second Law300

• Answer-- 5 m/s2
• Fm.a
• 25N5kg . 5m/s2

19
Newtons Second Law400

• Question-- What is one newton equivalent to in SI
  units? Use meters, kilograms, and seconds.

20
Newtons Second Law400

• Answer-- 1N1kg.m/s2

21
Newtons Second Law500

• Question-- What goes on the unlabeled axis if
  force is constant?

     
     
     
?
time
22
Newtons Second Law500

• Answer-- Velocity
• Constant force causes constant acceleration which
  is shown by a velocity with a constant slope

23
Newtons Third Law 100

• Question-- What is Newtons third law?

24
Newtons Third Law100

• Answer--Every action has an equal but opposite
  reaction

25
Newtons Third Law200

• Question--If I push on the wall with 100 N of
  force, how hard does the wall push on me in
  reaction?

26
Newtons Third Law200

• Answer-- 100 N

27
Newtons Third Law300

• Question-- Gravity pushes things down. What is
  the name of the opposing force that pushes things
  up?

28
Newtons Third Law300

• Answer-- the normal force

29
Newtons Third Law400

• Question-- When a fish swims, what is pushing it
  forward? What is the other half of the
  action/reaction pair?

30
Newtons Third Law400

• Answer--The water pushes the fish forward, in
  reaction to the fish pushing backward on the
  water.

31
Newtons Third Law500

• Question-- If the box below is not moving, what
  is missing from the free body diagram?

FN ? N
Fpush ? N
Ff 5 N
F -10 N
32
Newtons Third Law500

• Answer

FN 10 N
Fpush -5 N
Ffriction 5 N
Fg -10 N
33
Horizontal and Vertical Motion 100

• Question-- If a bullet is dropped at the same
  time that a bullet is shot horizontally and we
  ignore air resistance, which will hit first?

34
Horizontal and Vertical Motion100

• Answer--Both will hit at the same time

35
Horizontal and Vertical Motion200

• Question-- Horizontal motion maintains a constant
  velocity. What is the equation for distance
  traveled?

36
Horizontal and Vertical Motion200

• Answer dv.t

37
Horizontal and Vertical Motion300

• Question-- For vertical motion, velocity
  increases at a constant rate do to gravity. What
  is the equation for vertical velocity?

38
Horizontal and Vertical Motion300

• Answer-- v a . t
• or v 10 . t

39
Horizontal and Vertical Motion400

• Question-- For vertical motion, velocity
  increases at a constant rate do to gravity. What
  is the equation for vertical distance if the
  object starts with no vertical velocity?

40
Horizontal and Vertical Motion400

• Answer-- d ½ a . t2
• or  d 5 . t2

41
Horizontal and Vertical Motion500

• Question-- When there is both initial velocity
  and acceleration, what is the combined equation
  for distance?

42
Horizontal and Vertical Motion500

• Answer-- d v0. t ½ a . t2
• v0initial velocity

43
Math and Graphs100

• Question-- A cart is pushed on a frictionless
  surface so that it travels at 2.5 m/s. How far
  does it travel in 3 seconds?

44
Math and Graphs100

• Answer-- 7.5 m
• dv . t

45
Math and Graphs200

• Question-- How far down will a rock fall in 2
  seconds if it is thrown horizontally with a speed
  of 1 m/s?

46
Math and Graphs200

• Answer-- 20 m
• d½ a . t2
• agravity10 m/s2
• ttime2 sec
• Horizontal velocity does not effect vertical
  velocity

47
Math and Graphs300

• Question-- If my weight is 700 N on Earth, what
  is my weight on Venus where the force of gravity
  is 9 m/s2?

48
Math and Graphs300

• Answer-- 630 N
• Fma
• 700Nm.10m/s2, m70kg
• Fma, F70kg.9m/s2630N

49
Math and Graphs400

• Question-- I have a wagon with a mass of 5 kg at
  rest. I want it to be traveling 8 m/s after 4
  seconds of pulling. How much force do I need to
  pull with?

50
Math and Graphs400

• Answer-- 10 N
• av/t(8m/s)/4s2m/s2
• Fma5kg . 2m/s210N

51
Math and Graphs500
     
     
     
acceleration

• Question-- Is the applied force increasing,
  decreasing, or constant?

time
52
Math and Graphs500

• Answer-- The force is increasing
• Fma, mass is constant and acceleration is
  increasing, so force is increasing

53
Final Jeopardy

• What is the acceleration?
• What is the
• distance traveled?
• Is the force
• applied increasing, decreasing, or constant?

6 m/s
     
     
     
velocity
4 m/s
2 m/s
0 m/s
2 sec
0 sec
1 sec
3 sec
time
54
Final Jeopardy

• Acceleration v/t (6m/s)/3sec2m/s2
• distance area under the graph
• area ½.base.height½.3s .6m/s 9m
• Fma, acceleration is constant, so force must be
  constant