Unit 6 Review: Energy Party!

1
Unit 6 ReviewEnergy Party!
2
Rules

• Just like in Mario Party, in Energy Party you
  earn coins by completing challenges.
• You can use coins to get stars.
• The team with the most stars at the end wins!

3
How to Spend Coins

• 6 Coins Buy one star
• 8 Coins Steal one star from another team
• 10 coins Buy two stars

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How to Spend Coins

• Teams can spend coins when
• a Cash In space appears
• after a special event (such as a mini-game or
  Bowser button).
• team with the most coins goes first

5
Ready?

• Here
• we go!

6
1 Coin Question

• What type of energy does a bowling ball rolling
  down the lane have?

7
1 Coin

• Kinetic energy

8
1 Coin Question

• What is the KE at the point indicated?

PE80 J KE0
PE20 J KE?
9
1 Coin

• 60 J

10
1 Coin Question

• The Law of Conservation of Energy states that
  energy can never be ___________ or __________,
  only ___________

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1 Coin
Never be created or destroyed, only transformed
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Mini-Game!
13
Mini-Game!

• First team to answer correctly gets 4 coins!
• Are you ready?

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Mini-Game!

• What are the different forms of energy?

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Mini-Game!

• Chemical
• Nuclear
• Mechanical (Potential and Kinetic)
• Electrical
• Electromagnetic (light/radiant)
• Sound
• Thermal

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CASH IN!
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How to Spend Coins

• 6 Coins Buy one star
• 8 Coins Steal one star from another team
• 10 coins Buy two stars

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1 Coin Question

• Which object would have more thermal energy a
  glass of water at 20 C, a bath tub of water at 20
  C, or a bucket of water at 20 C.
• Why?

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1 Coin
The bath tub because it has the greatest volume.
20
2 Coin Question

• What is the difference between heat, thermal
  energy, and temperature.

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2 Coins

• Temperature is the measure of the average kinetic
  energy, whereas heat is the transfer of thermal
  energy, and thermal energy is the total amount of
  kinetic energy.

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2 Coin Question

• What is the potential energy of a 20 kg person on
  a swing 3 meters in the air?
• Dont forget about work or units.

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2 Coin

• 588 J

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Mystery Box!
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Mystery Box!

• If you answer correctly, youll find a useful
  item.

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Mystery Box!

• How can you increase the TOTAL energy in a roller
  coaster system?

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Mystery Box!

• Higher starting point or apply an additional
  force by pushing the cart at the top of the track

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Mystery Box!

• You found a red shell!
• Use it to knock out a team and stop them from
  getting the coins of any ONE question!

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CASH IN!
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How to Spend Coins

• 6 Coins Buy one star
• 8 Coins Steal one star from another team
• 10 coins Buy two stars

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2 Coin Question

• Does the following have thermal equilibrium? If
  not which way will the energy transfer?
• A glass of water that has a room temperature of
  18 C and an outdoor temperature of 20 C.

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2 Coins
No, the thermal energy will transfer from the
environment to the glass of water.
33
1 Coin Question

• In every energy conversion, some energy is always
  converted to ___________.

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1 Coins

• Thermal energy

35
1 Coin Question
Describe the energy transformation in the
following picture.
36
1 Coins
Chemical ? thermal
37
2 Coin Question

• Give an example of an object with both potential
  and kinetic energy.

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2 Coins

• An airplane, a ceiling fan, a space ship, a
  volleyball being spiked, etc.

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Bowser Button!
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Bowser Button!

• If the team answer isnt correct, the team will
  lose 2 coins!

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Bowser Button!

• Which of the following has the greatest potential
  energy?

Object Weight (N) Height (m) Potential Energy (J)
Book 10 2  
Plate 4 5  
Picture 12 2  
Statue 20 1  
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Bowser Button!
Object Weight (N) Height (m) Potential Energy (J)
Book 10 2 20 
Plate 4 5  20
Picture 12 2  24
Statue 20 1  20
The Picture
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CASH IN!
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How to Spend Coins

• 6 Coins Buy one star
• 8 Coins Steal one star from another team
• 10 coins Buy two stars

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1 Coin Question

• 7. Which of the following skateboarders has the
  most kinetic energy?
• A. small kid going 10 m/s B. large man going
  10 m/s
• C. small kid going 20 m/s D. large man going
  20 m/s

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1 Coin

• D. large man going 20 m/s

47
1 Coin Question

• 7. Which of the following skateboarders has the
  most kinetic energy?
• A. small kid going 10 m/s B. large man going
  10 m/s
• C. small kid going 20 m/s D. large man going
  20 m/s

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1 Coin

• 1. elastic potential
• 2. elastic potential
• 3. kinetic

49
1 Coin Question

• What is the formula for kinetic energy?

50
1 Coin

• KE ½ mass Velocity 2

51
1 Coin Question

• Which of the following has the most potential
  energy?

52
1 Coin

• KE ½ mass Velocity 2

53
3 Coin Question

• List the types of heat transfer. Give an example
  of each.

54
3 Coins

• Conduction transfer of heat through direct
  contact
• Convection transfer of heat through fluid
• Radiation transfer of heat through
  electromagnetic waves

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Mini-Game!
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Mini-Game!

• If the answer is correct, the group will receive
  2 coins
• If the answer is wrong, the group will receive -2
  coins

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Mini-Game!

• You are having a picnic with your friends. You
  packed a basket with an ice pack, a jug of
  lemonade, sandwiches, and cookies. The ice pack
  got warmer and the food and jug were cooler than
  when you first put them in the basket. Describe
  how AND why this happened.

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Mini-Game!

• The food and drink transferred thermal energy to
  the ice pack as they tried to reach thermal
  equilibrium.

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CASH IN!
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How to Spend Coins

• 6 Coins Buy one star
• 8 Coins Steal one star from another team
• 10 coins Buy two stars

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2 Coin Question

• What two properties does potential energy depend
  on?

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2 Coins

• Weight and height

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1 Coin Question

• Define Thermal Expansion. Give an example.

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1 Coin

• The particles in an object space out (increase in
  volume) as the temperature increases.

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2 Coin Question

• Describe the energy transformation for each

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2 Coins

• Toaster
• Electrical ? Thermal Sound mechanical
• Light bulb
• Electrical ? Thermal and Electromagnetic

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1 Coin Question

• Where would you see nuclear energy occurring?

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1 Coins

• The sun, a star, a supernova, a hydrogen bomb,
  nuclear power plant

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ALMOST THE LAST CASH IN!
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How to Spend Coins

• 6 Coins Buy one star
• 8 Coins Steal one star from another team
• 10 coins Buy two stars

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The Final Challenge!
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11 COIN QUESTION!

1. You decided to build a model coaster with a car
   that has a mass of 3 kg. If at point C it
   travels 6 m/s, what is its kinetic energy at this
   point? 
2. At point A roller coaster reaches a height of 10
   meters. What is its potential energy?
3. What is the total mechanical energy of the
   coaster? How do you know this? 
4. If at point C, it reaches a height of 5 meters,
   how much energy is transformed into thermal
   energy?

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3 Coins

• KE at Point C mass 3 kg, Velocity 6 m/s
• KE ½ mv2
• KE ½ 3 62
• KE ½ 3 36
• KE 54 J

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3 Coins

• PE at Point A mass 3 kg, height 10 meters.
  
• PE mgh
• PE 3 9.8 10
• PE 294 J

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2 Coins

• TME 294 J because at Point A, the car is at its
  highest point and is not moving.

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3 Coins

• Point Cheight 5 m, mass 3 kg, KE 54 J,
  Total Energy 294 J
• PE mgh 39.85
• PE 147 J
• Total Energy PE KE ThE ThE 93 J
• 294 J 147 J 54 J ThE
• 294 J 201J ThE

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Round Em Up!

• How many stars does your team have? If you have
  the most, you win!