Download Category 2

Jeopardy
Kinetic and
Potential
Types of
Potential Energy
100
100
200
200
300
Formulas and
Stuff
100
The Labs
Energy
Relationships
100
100
200
200
200
300
300
300
300
400
400
400
400
400
500
500
500
500
500
•Category 1
100
• Energy
• A.
is:
the buildup of charges on an object.
•
B. the force that is created from the Earth.
•
C. the ability to do work or cause change.
•
D. the force of one newton
•Category 1
200
•
The Law of Conservation of Energy states:
A. Energy is conserved as it changes from one form to
another.
• B. Energy can neither be created or destroyed.
• C. The total amount of energy remains the same.
• D. All of the above.
•
•Category 1
300
• What
• A.
units are used to express energy?
kilograms
• B. newtons per meter
• C. joules
• D. newtons
•Category 1
400
• Energy
exists in two states:
• _____________________
• _____________________
energy and
energy.
•Category 1
500
• As
energy transformations occur within a
system, the total energy of the system:
• A. is transferred
• B. decreases
• C.
out of the system
remains constant
• D. increases
•Category 2
100
• ____________
•
is the energy stored in an object
due to its position off the ground.
• A.
entropy
• B. gravitational potential energy
• C. thermal energy
• D. stored mechanical energy
•Category 2
200
• Stored
mechanical energy :
A. is stored in bonds between atoms.
•
B. is related to mass and height of the object off the ground.
•
C. can be increased by moving it to a greater height.
•
D. is stored in objects that are compressed or stretched.
•Category 2
300
The energy of a rock on a hill is:
A.
B.
C.
D.
A. stored mechanical energy
B. kinetic energy
C. gravitational potential energy
D. total energy
•Category 2
400
Galileo drops a ball from the top of the Leaning
• Tower of Pisa. As the ball accelerates toward
• Earth, it gains kinetic energy. Where does this
• energy come from?
•
•
•
•
A. the energy that is stored from Earth
B. the energy stored in the ball because of its height above the
ground.
C. the energy that is created by the falling ball.
D. All of the above.
•Category 2
500
• What
happens to the energy of a falling object
• as it accelerates towards Earth?
• A.
Gravitational potential energy decreases.
• B. Potential energy is transformed into kinetic
energy.
• C. Kinetic energy increases.
• D. All of the above.
•Category 3
100
The mass of an object multiplied by the height
of object off the ground, multiplied by
gravitational acceleration ( m x h x g) is the
formula to calculate:
• ____________
____________ ___________
•Category 3
200
A student’s backpack weighs 5 kgs. The
student lifts the backpack off the floor onto a
table that is 2 meters high. How much
potential energy is now stored in the backpack?
• ___________
___________
(formula: mass x height x g)
g = 9.8 m/s
•Category 3
300
• What
is the formula for kinetic energy?
A. mass x height x gravitational acceleration
B. mass x speed x gravitational acceleration
2
• C. .5 x mass x (speed)
2
• D. mass x height x (speed)
•
•Category 3
400
• Suppose you weigh 50 kgs and you climb
• up a staircase that is 4 meters high. What
• your
• A.
change in potential energy?
1000 joules
• B. 196 joules
• C. 200 joules
• D. 1960 joules
is
•Category 3
500
Find the kinetic energy of a 40 kg swimmer, who is
swimming at the speed of 6 m/s.
•
•
•
•
A. 240 joules
B. 72 joules
C. 720 joules
D. 120 joules
2
• (formula:
K.E.= .5 x mass x (speed)
•Category 4
100
The energy of a ball flying through the air is:
• A.
thermal energy
• B. kinetic energy
• C. gravitational potential energy
• D. total energy
•Category 4
200
• What
happens to a ball when it is dropped?
•
A. Potential and kinetic energy stay the same.
•
B. Potential changes to Kinetic energy.
•
C. Kinetic energy changes to Potential energy.
•
D. The total energy is decreased.
•Category 4
300
•
In the skate park lab, the skater has ______
kinetic energy before dropping in at the top of
the track.
A. 10 %
B. 0 %
C. 50 %
D. 100 %
•Category 4
400
In the Dropper Popper lab, the reason that the popper
bounces back higher than the tennis ball is because:
A. the material of the popper is made of rubber.
B. a force was applied to the popper by turning it inside out, resulting in stored
mechanical energy.
C. the popper weighs less than the tennis ball.
D. the gravitational acceleration is different for the popper
than the tennis ball.
•Category 4
500
In the frog lab, stored mechanical energy is
is referred to as:
A. chemical energy
B. mechanical energy
C. elastic potential energy
D. gravitational potential energy
•Category 5
100
What is the relationship between potential and
kintetic energy?
•
A. When one goes up, the other goes up.
•
B. When one goes down, the other goes down.
•
C. When one goes up, the other goes down.
•
D. They are both equal.
•Category 5
200
What is the relationship between kinetic energy
and speed?
•
•
•
•
A. As kinetic energy decreases, speed increases.
B. There is no relationship between speed and kinetic energy.
C. As kinetic energy increases, speed decreases.
D. As kinetic energy increases, speed increases.
•Category 5
300
Two people are jumping off a diving board at the
same time and at the same height, but they have two different masses.
Who hits the water first?
A. The one with the smallest mass
B. They both hit the water at the same time
C. The one with the largest mass
D. The one with the longer hair
•Category 5
400
How does friction affect what happens to the kinetic
energy of the skater on the skate track?
A. Friction causes the kinetic energy of the skater to transform into thermal
energy, which slows down the skater.
•
B. Friction causes the kinetic energy of the skater to transform into thermal
energy, which speeds up the skater.
•
C. Friction has no effect on kinetic energy.
•
D. Friction causes the kinetic energy to be transformed
into gravitational potential energy.
•Category 5
500
What kind of energy will you use to digest your
Thanksgiving dinner?
• A.
gravitational potential energy
• B.
chemical energy
• C.
electrical energy
• D.
radiant energy
•Category 1 Answer
100
C. The ability to do work or cause change.
•Category 1 Answer
200
• D.
All of the above.
•Category 1 Answer
300
• C.
Joules
•Category 1 Answer
400
• Potential
and Kinetic.
•Category 1 Answer
500
• C.
remains constant.
•Category 2 Answer
100
• B.
gravitational potential energy
•Category 2 Answer
200
• D.
is stored in objects that are compressed or
stretched.
•Category 2 Answer
300
• C.
gravitational potential energy.
•Category 2 Answer
400
• B.
the energy that is stored in the ball because
• of its position above the ground.
•Category 2 Answer
500
• D.
All of the above.
•Category 3 Answer
100
•
Gravitational Potential Energy
•Category 3 Answer
200
98 joules
•Category 3 Answer
300
2
• C.
.5 x mass x (speed)
•Category 3 Answer
400
• D.
1960 joules
•Category 3 Answer
500
•
C. 720 joules.
•Category 4 Answer
100
• B.
kinetic energy
•Category 4 Answer
200
• B.
potential changes to kinetic energy.
•Category 4 Answer
300
• B.
0%
•Category 4 Answer
400
•
B. a force was applied to the popper by turning it inside out,
resulting in stored mechanical energy.
•Category 4 Answer
500
• C.
elastic potential energy
•Category 5 Answer
100
• C.
When one goes up, the other goes down.
•Category 5 Answer
200
• D.
As kinetic energy increases, speed increases.
•Category 5 Answer
300
• B.
they both hit the water at the same
time.
•Category 5 Answer
400
A. Friction causes the kinetic energy of the
skater to transform into thermal energy,
which slows down the skater.
•Category 5 Answer
500
B. chemical energy