forms of energy - mr jeff's secondary science...
TRANSCRIPT
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Forms of Energy
9/15/14
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25 Electromagnetic Induction and Electromagnetic Waves
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Electromagnetic waves Here’s another representation of Electromagnetic waves. This one shows you examples of the size of the different waves and at what temperature an object must be to emit these waves.
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Types of Energy
• Chemical
• Mechanical
• Electrical
• Magnetic
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Types of Energy
• Electromagnetic
• Nuclear
• Thermal
• Sound
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What form is it?
What form of energy is flowing water?
A. It is Chemical
B. It is Electrical
C. It is Kinetic
D. It has/carries Kinetic
E. It has/carries Electrical
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What form is it?
What form of energy is wood?
A. It is Chemical
B. It is Thermal
C. It is Kinetic
D. It has/contains Chemical
E. It has/contains Thermal
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What form is it?
What form of energy does a banana have?
A. Chemical
B. Thermal
C. Kinetic
D. A and B
E. B and C
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What form is it?
What form of energy do the lights in this room give off?
A. Chemical
B. Thermal
C. Electromagnetic
D. A and B
E. B and C
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What form is it?
What form of energy does the projector in this room give off?
A. Thermal
B. Electromagnetic
C. Sound
D. A and B
E. A, B and C
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1. If the skater starts at rest at this point, what
kind of energy does he have?
A. Electrical B. Kinetic C. Gravitational Potential D.None
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2. How about at the bottom?
A. Electrical B. Kinetic C. Gravitational Potential D.None
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3. What kind of energy does the skater add to
himself if he puts his foot down and pushes?
A. Electrical B. Kinetic C. Gravitational Potential D.None
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Energy Form
If the skater is released from rest at the point shown, what kind of energy does he have? Friction is off.
A. Kinetic B. Grav.
Potential C. Thermal D.Kinetic and
Grav. Potential
E. None
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At the second blue dot, what kind of energy does he have?
Energy Form
A. Kinetic B. Grav.
Potential C. Thermal D.Kinetic and
Grav. Potential
E. He won’t get there.
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Energy Form
At the third blue dot, what kind of energy does he have?
A. Kinetic B. Grav.
Potential C. Thermal D.Kinetic and
Grav. Potential
E. He won’t get there.
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At the fourth blue dot, what kind of energy does he have?
Energy Form
A. Kinetic B. Grav.
Potential C. Thermal D.Kinetic and
Grav. Potential
E. He won’t get there.
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• Watch the pie chart to see how energy exchanges between potential and kinetic.
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4. Which has more gravitational potential
energy?
A
B A. box A B. box B C. Equal
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5. What kind of energy will I give box B if I put it on the chair?
A B
A. Electrical B. Kinetic C. Gravitational Potential D.None
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6. What about while I’m moving it? What kind of energy does it have?
A
B
A. Electrical B. Kinetic C. Gravitational Potential D.None
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Let’s say I toss it up to the chair. 7. What kind of energy does it have at point a?
A
B
• a
• b
• c
A. Electrical B. Kinetic C. Gravitational Potential D.None
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Let’s say I toss it up to the chair. 7. What kind of energy does it have at point b?
A
B
• a
• b
• c
A. Electrical B. Kinetic C. Gravitational Potential D.None
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Let’s say I toss it up to the chair. 7. What kind of energy does it have at point c?
A
B
• a
• b
• c
A. Electrical B. Kinetic C. Gravitational Potential D.None
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Let’s say I toss it higher before it lands on the chair. 8. How does the KE and PE at points a1 and a2 compare? How about b1 and b2? How about c1 and c2?
A
B
A
B
• a1
• b1
• c1 • c2
• b2
• a2