Download motion

The Man’s
Jeopardy
Learning Objectives (Big Ideas)
1. Analyze an object’s motion and be able to
determine distance, instant & average speed, or
acceleration.
2. Describe how the various balanced and
unbalanced forces can have an effect on an
object’s motion.
3. Apply Newton’s Laws to real world examples.
4. Analyze the methods by which machines make
work easier.
5. Examine situations where kinetic energy is
changed into potential energy (and vice-versa).
RULES
1. There will be round robin play and
all questions will be all-play.
2. The teams who answers correctly
win the point value of the question.
3. There are no daily doubles available.
Let’s
play
Study Tools
(Power Pts. Are on Mr. Nye’s website)
1. Physics Practice Test
2. Physics Final Review Games (Parts 1 & 2)
3. Past Tests & Quizzes (Motion, Forces, Work &
Machines)
4. Class Power Points
5. Previous Review Games
6. Lab Notebook
7. Notes
8. Textbook
*A on Final + Good Behavior = Special Reward*
Motion
Forces Work & Energy
Machines
100
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200
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500
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500
Final Jeopardy
Motion for 100
What is the distance traveled at the 4 s
mark?
40 m (+ or – 2 m)
Motion for 200
Draw a distance-time graph for an object
that is not moving at all.
Straight horizontal line on a distance vs.
time graph
Motion for 300
Draw a speed-time graph for an object
traveling at a constant speed.
Graph should be a straight horizontal line
indicating the same speed over a period
of time for a speed-time graph.
Motion for 400
Draw a distance-time graph for an object
traveling at a constant speed.
Graph should be a straight line slanted
up and to the right or down and to the
right (with distance on the y-axis and
time on the x-axis)
Motion for 500
Draw a speed-time graph showing an object
slowing down.
Graph should be a slanted line going down and to the
right on a speed-time graph.
Forces for 100
Which of the following would require the greatest
force: a large truck accelerating at 5 m/s/s, a small
stone accelerating at 6 m/s/s, or a person
accelerating at 5.5 m/s/s. Explain your answer.
The truck because its greater mass has a greater
effect on the force it would exert than the
slightly higher accelerations of the person and
the stone.
Forces for 200
Explain why a kicker can sometimes fly
backward when kicking another person.
Hint- Newton’s 3rd Law.
The action force is the kick, while the equal
and opposite reaction is the body of the
person who’s being kicked pushing
back on the kicker.
Forces for 300
Why are larger people unable to move as
quickly as lighter people?
More force is required to accelerate a
heavier mass.
Forces for 400
Explain why your body moves backward
when a car first takes off.
Your body is at rest and attempts to
remain at rest (due to your inertia).
Forces for 500
Markie & Suzie conduct an experiment to determine
how mass affects the force needed to move that object.
They choose to push objects up a ramp. They both
believe that heavier objects will require more force.
How should they design the experiment? What is 1
constant? May give answer verbally.
Design- Push objects of different masses up a ramp
and measure the force exerted.
Constants- Same ramp height/incline, same
acceleration, same object, same position of release
on the ramp
Work & Machines for 100
Which class of lever is the input force opposite the
direction of the output force? Is this the class that pliers
belong to? How does the load weight (output force)
compare the input force for 1st and 2nd class levers?
1st class
Yes, b/c the fulcrum is in the middle.
Load weight is greater than the input force.
Work & Machines for 200
How can you increase the M.A. of a pulley
system?
Add more pulleys to create more sections of
rope.
Work & Machines for 300
Suppose the input force for a screwdriver is 15 N,
then which of the following could be the output
force: 0 N, 10 N, 15 N, or 30 N? Also, how does
the M.A. compare to 1?
30 N (output is greater than input, M.A. > 1)
Work & Machines for 400
Which of the following would be an example of a
compound machine: scissors, ruler, wheelbarrow,
or door stopper? CHOOSE ONE and list 2 types
of simple machines that make up that compound
machine.
Wheelbarrow: wheel & axle and lever (2nd
class)
Scissors: Wedge & 1st class lever
Work & Machines for 500
Explain how a screwdriver works (in terms of
input and output force as well as input and output
distance).
The input force over the wheel (handle) travels a
greater distance than the larger output force
over the axle (metal rod).
Energy for 300
If your throw a ball up in the air, how do the PE and
KE change as the ball goes up and then comes back
down? Explain your answer.
PE increases as the ball goes up because it is higher
off of the ground while the KE decreases until the
ball starts to gain speed as it goes back toward the
ground. As the ball goes down, the KE increases
and the PE decreases (lower height).
Forces
Newton’s Cradle demonstrates how momentum
(and energy) can be transferred between objects.
However, after a period of time, the metal spheres
do not bounce as high and eventually stop
moving. Explain why this occurs.
Friction between the spheres and strings as well
as the air around the cradle cause the momentum
and energy to be “lost”.