Energy Transfer
True or False:
Heat travels from cool objects to warmer ones.
A. True
B. False
B. False: Heat travels from warm objects to cooler ones.
What is an insulator?
A. A material that does not let heat/electricity flow through easily.
B. A material that lets heat/electricity flow through easily.
A. A material that does not let heat/electricity flow through easily.
Is the following material a good insulator or conductor? Metal
A. Conductor
B. Insulator
A. Conductor
A warm can of soda is placed in a bucket of ice. Which way will the heat from in this scenario?
A. From the soda to the ice.
B. From the ice to the soda.
A. From the soda to the ice.
What is a conductor?
A. A material that does not let heat/electricity flow through easily.
B. A material that lets heat/electricity flow through easily.
B. A material that lets heat/electricity flow through easily.
Is the following material a good insulator or conductor? Plastic
A. Conductor
B. Insulator
B. Insulator
Heat will continue moving from a hotter object to a cooler object until both objects are ____________.
A. Different temperature.
B. The same temperature.
B. The same temperature.
True or False:
Metal objects are poor good conductors of heat.
A. True
B. False
B. False: Metal conducts heat well
Is the following material a good insulator or conductor? Rubber.
A. Conductor
B. Insulator
B. Insulator
When a warm soda can is placed in an ice chest full of ice, the soda can _______ heat and the ice _______ heat until they are both the same temperature.
A. Gains; loses
B. Loses; gains
B. Loses; gains
The picture below shows a frying pan. Why are frying pans usually made out of metal?
A. because metal is a poor conductor of electricity
B. because metal is a poor conductor of heat
C. because metal is a good conductor of electricity
D. because metal is a good conductor of heat
D. because metal is a good conductor of heat
Is the following material a good insulator or conductor? Aluminum
A. Conductor
B. Insulator
A. Conductor
A waiter places an ice cube in a cup of coffee. Which of these describes how the heat travels?
A. From the coffee to the ice until it boils
B. From the ice cube to the coffee until it freezes
C. From the ice cube to the coffee until they both evaporate
D. From the coffee to the ice cube until they become the same temperature
D. From the coffee to the ice cube until they become the same temperature
Some cooking spatulas are made out of plastic. Why are cooking spatulas often made out of plastic?
A. Plastic is a good conductor.
B. Plastic is a poor conductor.
B. Because plastic is a poor conductor of heat, and this keeps the handle from getting too hot to touch while cooking.
Which of the following materials are insulators? Wood, copper, steel, plastic, glass, cloth.
A. Cooper, wood, steel, cloth
B. Copper, steel, glass
C. Wood, plastic, glass, cloth
c. wood, plastic, glass, cloth