Physics Jeopardy
Work &
Power
Simple
Machines
Energy
energy
Extra credit on
quiz questions
Q $100
Q $100
Q $100
Q $100
Q $100
Q $200
Q $200
Q $200
Q $200
Q $200
Q $300
Q $300
Q $300
Q $300
Q $300
Q $400
Q $400
Q $400
Q $400
Q $400
Q $500
Q $500
Q $500
Q $500
Q $500
Final Jeopardy
$100 Work & Power
• How many joules of work are done on an
object when a force of 10N pushes it 5m?
$100 Answer Work & Power
• 50 J
$200 Work & Power
• How much work is done on a 50 N rock that
you carry horizontally across a 10 m room?
$200 Answer Work & Power
• Zero Joules of Work
$300 Work & Power
• How much power is expended if you lift a
50 N rock 10 m in 2 second?
$300 Answer Work & Power
• 250 Watts
$400 Work & Power
• Marissa is jogging up a winding trail on a
mountain that has a height of 200 m. When
she finally gets to the top a sign tells her
that the trail has a distance of 800 m. If she
has a mass of 48 Kg, how much Work has
she done?
$400 Answer Work & Power
• 96000 Joules
$500 Work & Power
Sam, who has a mass of 70Kg, races Jarvis, who
has a mass of 50Kg, up a hill with a height of
10m. If Sam gets up the hill in 5s and Jarvis gets
up the hill in 3.6s, who is more powerful?
$500 Answer Work & Power
• Sam’s power was 1400 Watts and Jarvis’s
power was also 1400Watts, so they had the
same amount of power.
$100 Question Simple Machines
The ratio of output force to input force of a
simple machine is called the:
a) gear ratio
b) fulcrum
c) efficiency
d) mechanical advantage.
e) pivot point
$100 Answer Simple Machines
d) Mechanical advantage
$200 Question Simple Machines
How much less work does Jack do when
he pulls a rope of a pulley down .7m and
lifts a mass of 540N that is supported by 4
ropes?
$200 Answer Simple Machines
The work on both sides are the same.
$300 Question Simple Machines
If Erin can only push with a force of 8N,
how far out must she be from the
fulcrum of the lever if she is lifting a
mass with a weight of 40N that is 30cm
from the fulcrum?
$300 Answer Simple Machines
150cm
$400 Question Simple Machines
You build a lever to help you lift a tank. The tank weighs 4000 N,
and you need to lift it 2 meters. You decide on a whim to analyze
what you have done after lifting the tank and realize that you
moved your end of the lever a whopping 20 meters, but had to
apply a 500 N force. What did you find out the efficiency of your
lever was?
$400 Answer Simple Machines
80 % efficiency
$500 Question Simple Machines
How high does a 300N weight get lifted if
it is supported by a system of 4 pulleys
like the system below, and Mark pulls
the rope .5m?
Irvin
300N
$500 Answer Simple Machines
.125m
$100 Question Energy
Potential energy is the energy an object
has because of its ______.
a) Speed
b) location
c) size
d) temperature
e) density
$100 Answer Energy
• B) Location
$200 Question Energy
If an object has kinetic energy, then it also
must have _______.
a) Impulse
b) momentum
c) acceleration
d) Force
e) None of the above
$200 Answer Energy
b) momentum
$300 Question Energy
A toy cart moves with a kinetic energy of 30J.
If its speed is doubled, what will its kinetic
energy be?
$300 Answer Energy
• 120J
$400 Question Energy
If Barbora, with mass of 46Kg jumps off the
top of the high school, height: 20m, how
much kinetic energy does she have when
she has fallen a quarter of the distance?
$400 Answer Energy
• 2300 J
$500 Question Energy
A ball slides down the frictionless track shown below. The ball has no velocity at position F.
G
E
F
C
A
B
a)
b)
c)
d)
e)
f)
g)
To what point does the ball rise on the opposite incline?
At what point(s) in the diagram is the speed at a maximum?
At what point(s) is the kinetic energy at a maximum?
At what point(s) is the speed zero?
At what point(s) is the potential energy at a minimum?
At what point(s) is the potential energy at a maximum?
At what point(s) is the momentum at a maximum?
$500 Answer Energy
a) E
b) B
c) B
d) F & E
e) B
f) F & E
g) B
$100 Question energy
If you stand on top of a building and figure
out that you have a PE of 4000 Joules, what
would your KE be right before you hit the
ground?
$100 Answer energy
KE = 4000 J
$200 Question energy
How much work does it take to lift a 400 N slab
of brick a height of 5 meters?
$200 Answer energy
W = 200 J
$300 Question energy
How much kinetic energy do you have if you
are running at a speed of 5 m/s and have a
mass of 65 kg?
$300 Answer energy
KE = 812.5 J
$400 Question energy
What is your speed if you have a KE of 32000 J and
a mass of 70 kg?
$400 Answer energy
v = 30.2 m/s
$500 Question energy
What is your KE half way down a hill if the hill
has a height of 25 m and you have a mass of 55
kg?
$500 Answer energy
KE = 6875 J
$100 Question Other
LOL
$100 Answer Other
LOL
$200 Question Other
LOL
$200 Answer Other
LOL
$300 Question Other
LOL
$300 Answer Other
LOL
$400 Question Other
LOL
$400 Answer Other
LOL
$500 Question Other
Just sad….
$500 Answer Other
LOL
Final Jeopardy
Why will a looped coil attached to a DC power supply not work as
a good motor?
Final Jeopardy Answer