Blank Jeopardy Game

1
Energy
2
Work
3
Kinetic Energy
4
Potential Energy
5
Conservation of Energy
6
Physics is Phun!
7
Work
Physics is Phun!
Kinetic Energy
Potential Energy
Conservation of Energy
5 pt.
5 pt.
5 pt.
5 pt.
5 pt.
10 pt.
10 pt.
10 pt.
10 pt.
10 pt.
15 pt.
15 pt.
15 pt.
15 pt.
15 pt.
20 pt.
20 pt.
20 pt.
20 pt.
20 pt.
25 pt.
25 pt.
25 pt.
25 pt.
25 pt.
8
1-5
When energy is added to an object, what kind of
work is done? A) positive B) negative C)
zero D) not enough info
5 pt.
9
1-5A
When energy is added to an object, what kind of
work is done? A) positive
5 pt.
10
1-10
Is the work done on the object pictured below
positive or negative?
Force
distance
10 pt.
11
1-10A
Is the work done on the object pictured below
positive or negative?
Force
distance
0 N, since the force and distance are at right
angles.
10 pt.
12
1-15
How much work is done by a cars engine when it
pushes the 2000 kg car with a force of 1450 N
through a distance of 200 meters?
15 pt.
13
1-15A
How much work is done by a cars engine when it
pushes the 2000 kg car with a force of 1450 N
through a distance of 200 meters?
Work Force x distance Work (1450 N)(200 m)
290,000 J
15 pt.
14
1-20
How many watts are expended when a 100-N person
walks 3.5 meters up a flight of stairs in 14
seconds?
20 pt.
15
1-20A
How many watts are expended when a 100-N person
walks 3.5 meters up a flight of stairs in 14
seconds?
Work Force x distance Work (100 N)(3.5 m)
350 J Power Work / Time Power (350 J)/(14
sec) 25 Watts
20 pt.
16
4-20A
When jumping off of a 3m tall garage, the 90 kg
jumper lands on a pile of leaves. How much work
does the pile of leaves do on the jumper?
25 pt.
17
4-20A
When jumping off of a 3m tall garage, the 90 kg
jumper lands on a pile of leaves. How much work
does the pile of leaves do on the jumper?
W ?KE -?PEg -mgh W - 90kg 10m/s2
3m W -2700 J
25 pt.
18
2-5
Negative work is done on a rolling bowling ball.
What happens to the kinetic energy of the
ball? A) KE increases B) KE does not change C)
KE decreases D) not enough info
5 pt.
19
2-5A
Negative work is done on a rolling bowling ball.
What happens to the kinetic energy of the
ball? C) KE decreases
5 pt.
20
2-10
True or False It is possible for an object to
have a negative kinetic energy.
10 pt.
21
2-10A
True or False It is possible for an object to
have a negative kinetic energy.
False
10 pt.
22
2-15
What is the KE of a car with a mass of 1200-kg
that is moving at 180 km/hr?
15 pt.
23
2-15A
What is the KE of a car with a mass of 1200-kg
that is moving at 180 km/hr?
KE 1/2mv2 180 km/hr 50 m/s KE 1/2 (1200
kg)(50 m/s)2 KE 1,500,000 Joules
15 pt.
24
2-20
Two identical cars are traveling down the road --
one moving at twice the speed of the other. If
both apply the brakes, what will happen? A)
they both travel the same distance B) the faster
car will move twice as far C) the faster car
will move four times as far D) not enough info
20 pt.
25
2-20A
Two identical cars are traveling down the road --
one moving at twice the speed of the other. If
both apply the brakes, what will happen? C)
the faster car will move four times as far
20 pt.
26
2-25
A rocket of mass 250-kg is launched upward by a
thrust force of 10,000-N through 12 kilometers.
How fast is it moving when the engine shuts off?
25 pt.
27
2-25A
A rocket of mass 250-kg is launched upward by a
thrust force of 10,000-N through 12 kilometers.
How fast is it moving when the engine shuts off?
Work Change in Energy Fd mgh
1/2mv2 (10,000N)(12,000m) (250kg)(10)(12,000m)1
/2 (250 kg)v2 v v720,000 v 849 m/sec
25 pt.
28
3-5
How do you calculate gravitational potential
energy (GPE)?
5 pt.
29
3-5A
How do you calculate gravitational potential
energy (GPE)?
GPE weight x height mgh
5 pt.
30
3-10
What is the PEg of a 50-kg object placed at a
height of 10 m?
10 pt.
31
3-10A
What is the PEg of a 50-kg object placed at a
height of 10 m?
PEg mgh (50 kg)(10 m/s2)(10 m) PEg 5,000
Joules
10 pt.
32
3-15
If 72J of work is done on a spring with a spring
constant of 16, how far is the spring stretched?
15 pt.
33
3-15A
If 72J of work is done on a spring with a spring
constant of 16, how far is the spring stretched?
W DPES 72J PES ½ kx2 72J ½ kx2 9 x2 x
3m
15 pt.
34
3-20
A vertical spring is compressed 0.4m by a 24kg
mass. The mass is removed, allowing the spring to
return to normal. The spring is then stretched
0.8m. How much energy is in the spring?
20 pt.
35
3-20A
A vertical spring is compressed 0.4m by a 24kg
mass. The mass is removed, allowing the spring to
return to normal. The spring is then stretched
0.8m. How much energy is in the spring?
F kx 24kg 10m/s2 k 0.4m k 600 N/m PES
½ kx2 PES 192 J
20 pt.
36
3-25
Your Team may wager from 0-50 pts.
You must make your wager BEFORE the Daily Double
is revealed!!!
25 pt.
37
3-25A
Daily Double
Daily Double
How much power does the engine of a 2300-kg
elevator put out if it climbs through 38-m in one
minute?
GPE (2300 kg)(10 m/s2)(38 m) 874,000 J Power
GPE / Time (874,000 J)/(60 sec) Power
14,567 Watts
Daily Double
38
4-5
If the universe began during the Big Bang 15
billion years ago with an energy of 516
gadzillion Joules, how much energy is there in
the universe right now?
5 pt.
39
4-5A
If the universe began during the Big Bang 15
billion years ago with an energy of 516
gadzillion Joules, how much energy is there in
the universe right now?
516 gadzillion Joules
5 pt.
40
4-10
When a car slows down to a stop where does all of
its previous KE go? A) it turns into heat B)
braking energy C) into total mechanical
energy D) not enough info
10 pt.
41
4-10A

• When a car slows down to a stop where does all of
  its previous KE go?
• it turns into heat

10 pt.
42
4-15
When a diver who weighs 650-N jumps from a 10-m
high diving platform, how much KE do they hit the
water with?
15 pt.
43
4-15A
When a diver who weighs 650-N jumps from a 10-m
high diving platform, how much KE do they hit the
water with?
GPEinitial KEfinal KEfinal (650 N)(10 m)
6500 J
15 pt.
44
4-20
When jumping up and down on a trampoline, the
45-kg jumper leaves the trampoline with a KE of
3800 J. How high do they travel?
20 pt.
45
4-20A
When jumping up and down on a trampoline, the
45-kg jumper leaves the trampoline with a KE of
3800 J. How high do they travel?
KEinitial GPEfinal mgh 3800 J (450 N) h h
(3800 J)/(450 N) 8.44 m
20 pt.
46
4-25
A 2-kg ball slides from rest down a 5-m tall
incline as shown. When it is halfway down, how
fast is it going?
25 pt.
47
4-25A
A 2-kg ball slides from rest down a 5-m tall
incline as shown. When it is halfway down, how
fast is it going?
GPEinitial KE GPE (2kg)(10m/s2)(5m) 1/2
(2kg)v2 (2kg)(10m/s2)(2.5m) 100 J 1/2
(2kg)v2 50 J 50 J v2 v v(50) 7.1 m/sec
25 pt.
48
5-5
Whats the anagram of the following phrase which
is also the name of a famous actor of that movie
genre? Old West Action
5 pt.
49
5-5A
Old West Action
Clint Eastwood
5 pt.
50
5-10
Name the character and movie that produced this
famous quote A wizard is never late he
arrives precisely when he means to.
10 pt.
51
5-10A
Gandalf the Grey, in LOTR Fellowship of the Ring
10 pt.
52
5-15
Launched in 1977, what spacecraft is now the
farthest from Earth?
15 pt.
53
5-15A
Voyager I
15 pt.
54
5-20
In what year was the Great Pyramid of Giza
constructed? (300 years)
20 pt.
55
5-20A
Roughly 2600 B.C.E.
20 pt.
56
5-25
Who is the vicious ruler of the planet Mongo, and
the enemy of Flash Gordon?
25 pt.
57
5-25A
Ming the Merciless
25 pt.
58
Daily Double
Daily Double
Daily Double
How much power does the engine of a 2300-kg
elevator put out if it climbs through 38-m in one
minute?
Daily Double
Daily Double