THE AWESOMENESS THAT IS LASER QUIZ IS ABOUT TO BEGIN (voices off!) When you see the problem on the screen, you must QUIETLY communicate the answer with nearby teammates. DON’T GIVE YOUR ANSWER TO THE OTHER TEAM! THEY DON’T DESERVE IT! Quietly get ready…

At which point does the pendulum have the most kinetic energy?

At which point does the pendulum have the most kinetic energy At which point does the pendulum have the most kinetic energy? ANSWER: POINT B

All of the following are examples of heat transfer by radiation Except:   A. The sun warming the earth.   B. A microwave oven. C. Holding your hands to the side of a hot stove. D. Ironing your clothes

All of the following are examples of heat transfer by radiation Except: ANSWER D   A. The sun warming the earth.   B. A microwave oven. C. Holding your hands to the side of a hot stove. D. Ironing your clothes (THIS IS CONDUCTION)

Which of the following correctly describes the flashlight’s energy transfer? A. Chemical light electrical   B. Electrical light chemical C. Light electrical chemical D. Chemical electrical light

Which of the following correctly describes the flashlight’s energy transfer? ANSWER: D A. Chemical light electrical   B. Electrical light chemical C. Light electrical chemical D. Chemical electrical light

What form of energy increases as a rain drop falls from the sky?   A. Kinetic energy B. Electric energy C. Thermal energy D. Potential energy

What form of energy increases as a rain drop falls from the sky What form of energy increases as a rain drop falls from the sky? ANSWER: A   A. Kinetic energy B. Electric energy C. Thermal energy D. Potential energy

Which of the following would change the marble’s potential energy? A. Remove the block from under the ruler B. Remove the cup at the end of the ruler

Which of the following would change the marble’s potential energy Which of the following would change the marble’s potential energy? ANSWER A A. Remove the block from under the ruler (a decrease in height will decrease the marble’s potential energy) B. Remove the cup at the end of the ruler

A student turns the handle of a hand-powered generator and the bulb lights up. Which answer correctly describes the energy transfer taking place? A. Mechanical Electrical Light   B. Thermal Solar Light C. Solar Light Electrical D . Electrical Mechanical Light

A student turns the handle of a hand-powered generator and the bulb lights up. Which answer correctly describes the energy transfer taking place? A. Mechanical Electrical Light   B. Thermal Solar Light C. Solar Light Electrical D . Electrical Mechanical Light ANSWER: A (hand movement, to wires inside the device, to light bulb)

I heat up a meal inside a light-up microwave oven I heat up a meal inside a light-up microwave oven. Which of the following is NOT a form of energy used in this process? A. Thermal B. Solar C. Light D. Electrical

I heat up a meal inside a light-up microwave oven I heat up a meal inside a light-up microwave oven. Which of the following is NOT a form of energy used in this process? ANSWER B A. Thermal B. Solar (no Sun energy was used) C. Light D. Electrical

Which of the following describes the energy transfer that lights the bulb? A. Chemical to Thermal to Electrical B. Chemical to Electrical to Light C. Electrical to Chemical to Light D. Electrical to Light to Chemical

Which of the following describes the energy transfer that lights the bulb? ANSWER B (battery to wires to light bulb) A. Chemical to Thermal to Electrical B. Chemical to Electrical to Light C. Electrical to Chemical to Light D. Electrical to Light to Chemical

A student uses a hot plate to heat up a beaker of water A student uses a hot plate to heat up a beaker of water. The water increases in temperature because…   A. Electrical energy changes to Chemical energy B. Light energy changes to Solar energy C. Electrical energy changes to Thermal energy D. Thermal energy changes to Light energy

A student uses a hot plate to heat up a beaker of water A student uses a hot plate to heat up a beaker of water. The water increases in temperature because… ANSWER C (wires inside – electrical, heat-thermal)   A. Electrical energy changes to Chemical energy B. Light energy changes to Solar energy C. Electrical energy changes to Thermal energy D. Thermal energy changes to Light energy

At which point on the roller coaster is the potential energy the greatest?

At which point on the roller coaster is the potential energy the greatest? ANSWER A (highest point)

Examine the drawing. Four blocks were heated to different temperatures and stacked together as shown. It’s possible for heat energy to move in all of the following directions EXCEPT: A. From #1 to #3 B. From #3 to #2 C. From #3 to #1 D. From #2 to #1 1# 25°C 2# 35°C 3# 45°C 4# 45°C

Examine the drawing. Four blocks were heated to different temperatures and stacked together as shown. It’s possible for heat energy to move in all of the following directions EXCEPT: ANSWER A (heat travels to where it’s cold!) A. From #1 to #3 B. From #3 to #2 C. From #3 to #1 D. From #2 to #1 1# 25°C 2# 35°C 3# 45°C 4# 45°C

A. Metal B. Cork C. Wood D. Plastic Four different cups contain the same amount of hot liquid. After ten minutes, which material best reduces the conduction of heat between the cup and the outside air? Temperature Metal Cork Wood Plastic Initial 34°C Final 28°C 32°C 19°C 27°C A. Metal B. Cork C. Wood D. Plastic

A. Metal B. Cork C. Wood D. Plastic Four different cups contain the same amount of hot liquid. After ten minutes, which material best reduces the conduction of heat between the cup and the outside air? ANSWER B (the temp only dropped 2 degrees) Temperature Metal Cork Wood Plastic Initial 34°C Final 28°C 32°C 19°C 27°C A. Metal B. Cork C. Wood D. Plastic

A student uses an open flame to heat a beaker of water, as shown in the diagram. What type of transfer is happening in areas 1 and 2? A. #1 Conduction #2 Convection B. #1 Convection #2 Conduction C. #1 Radiation #2 Convection D. #1 Radiation #2 Conduction 1 2

1 2 A. #1 Conduction #2 Convection B. #1 Convection #2 Conduction A student uses an open flame to heat a beaker of water, as shown in the diagram. What type of transfer is happening in areas 1 and 2? ANSWER B (#1 convection as heat attaches to and travels with liquid #2 conduction where the flame touches the glass) A. #1 Conduction #2 Convection B. #1 Convection #2 Conduction C. #1 Radiation #2 Convection D. #1 Radiation #2 Conduction 1 2

A. insulation B. conduction C. convection D. radiation Examine the diagram provided. It shows how sea breezes form as warm air over the land rises and cool ocean air moves inland. The movement of air is an example of: A. insulation B. conduction C. convection D. radiation

A. insulation B. conduction C. convection D. radiation Examine the diagram provided. It shows how sea breezes form as warm air over the land rises and cool ocean air moves inland. The movement of air is an example of: ANSWER C -- heat attaching to a gas (air) A. insulation B. conduction C. convection D. radiation

As a binder falls off a table, how does its potential and kinetic energy change?   A Potential and kinetic energy both decrease B Potential and kinetic energy both increase C Potential decreases and kinetic increases D Potential increases and kinetic decreases

As a binder falls off a table, how does its potential and kinetic energy change? ANSWER C   A Potential and kinetic energy both decrease B Potential and kinetic energy both increase C Potential decreases and kinetic increases D Potential increases and kinetic decreases

Which of the following best represents potential energy? A Air leaking rapidly from a balloon     B Water flowing through a faucet   C Heat radiating from a stove     D A boulder at the top of a hill  

Which of the following best represents potential energy Which of the following best represents potential energy? ANSWER D: it’s about to move but has not moved yet     A Air leaking rapidly from a balloon     B Water flowing through a faucet   C Heat radiating from a stove     D A boulder at the top of a hill  

A container of hot water was left out on a table A container of hot water was left out on a table. Some of its thermal energy was transferred to the environment. What was the change in temperature resulting from loss of thermal energy? A. 20°C B. 50°C C. 80°C D. 40°C Before After

A container of hot water was left out on a table A container of hot water was left out on a table. Some of its thermal energy was transferred to the environment. What was the change in temperature resulting from loss of thermal energy? ANSWER D: 60 – 20 is a difference of 40. A. 20°C B. 50°C C. 80°C D. 40°C Before After

Put cards back in bins according to my instructions. I will tally up the points.