Unit 6 Review: Energy Party!

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!

How to Spend Coins 6 Coins: Buy one star 8 Coins: Steal one star from another team 10 coins: Buy two stars

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

Ready? Here we go!

1 Coin Question What type of energy does a bowling ball rolling down the lane have?

1 Coin Kinetic energy

1 Coin Question What is the KE at the point indicated? PE=80 J KE=0

1 Coin 60 J

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

Never be created or destroyed, only transformed 1 Coin Never be created or destroyed, only transformed

Mini-Game!

Mini-Game! First team to answer correctly gets +4 coins! Are you ready?

Mini-Game! What are the different forms of energy?

Mini-Game! Chemical Nuclear Mechanical (Potential and Kinetic) Electrical Electromagnetic (light/radiant) Sound Thermal

CASH IN!

How to Spend Coins 6 Coins: Buy one star 8 Coins: Steal one star from another team 10 coins: Buy two stars

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?

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

2 Coin Question What is the difference between heat, thermal energy, and temperature.

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.

2 Coin Question What is the potential energy of a 20 kg person on a swing 3 meters in the air? Don’t forget about work or units.

2 Coin 588 J

Mystery Box!

Mystery Box! If you answer correctly, you’ll find a useful item.

Mystery Box! How can you increase the TOTAL energy in a roller coaster system?

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

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!

CASH IN!

How to Spend Coins 6 Coins: Buy one star 8 Coins: Steal one star from another team 10 coins: Buy two stars

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.

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

1 Coin Question In every energy conversion, some energy is always converted to ___________.

1 Coins Thermal energy

Describe the energy transformation in the following picture. 1 Coin Question Describe the energy transformation in the following picture.

1 Coins Chemical  thermal

2 Coin Question Give an example of an object with both potential and kinetic energy.

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

Bowser Button!

If the team answer isn’t correct, the team will lose 2 coins! Bowser Button! If the team answer isn’t correct, the team will lose 2 coins!

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 Statue 20 1

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

CASH IN!

How to Spend Coins 6 Coins: Buy one star 8 Coins: Steal one star from another team 10 coins: Buy two stars

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

1 Coin D. large man going 20 m/s

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

1 Coin 1. elastic potential 2. elastic potential 3. kinetic

1 Coin Question What is the formula for kinetic energy?

1 Coin KE = ½ mass * Velocity 2

1 Coin Question Which of the following has the most potential energy?

1 Coin KE = ½ mass * Velocity 2

3 Coin Question List the types of heat transfer. Give an example of each.

3 Coins Conduction: transfer of heat through direct contact Convection: transfer of heat through fluid Radiation: transfer of heat through electromagnetic waves

Mini-Game!

Mini-Game! If the answer is correct, the group will receive +2 coins If the answer is wrong, the group will receive -2 coins

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.

Mini-Game! The food and drink transferred thermal energy to the ice pack as they tried to reach thermal equilibrium.

CASH IN!

How to Spend Coins 6 Coins: Buy one star 8 Coins: Steal one star from another team 10 coins: Buy two stars

2 Coin Question What two properties does potential energy depend on?

2 Coins Weight and height

1 Coin Question Define Thermal Expansion. Give an example.

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

2 Coin Question Describe the energy transformation for each:

2 Coins Toaster: Electrical  Thermal & Sound & mechanical Light bulb Electrical  Thermal and Electromagnetic

1 Coin Question Where would you see nuclear energy occurring?

1 Coins The sun, a star, a supernova, a hydrogen bomb, nuclear power plant

ALMOST THE LAST CASH IN!

How to Spend Coins 6 Coins: Buy one star 8 Coins: Steal one star from another team 10 coins: Buy two stars

The Final Challenge!

11 COIN QUESTION! 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?  At point A roller coaster reaches a height of 10 meters. What is its potential energy? What is the total mechanical energy of the coaster? How do you know this?  If at point C, it reaches a height of 5 meters, how much energy is transformed into thermal energy?

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

3 Coins PE at Point A: mass = 3 kg, height = 10 meters. PE= m*g*h PE = 294 J

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

3 Coins Point C:height = 5 m, mass = 3 kg, KE = 54 J, Total Energy =294 J PE = m*g*h = 3*9.8*5 PE= 147 J Total Energy = PE + KE +ThE ThE = 93 J 294 J = 147 J + 54 J + ThE 294 J = 201J +ThE

Round ‘Em Up! How many stars does your team have? If you have the most, you win!