Heat Transfer

Multiple Choice

Heating food in a microwave oven.

• Conduction

• Convection

• Radiation

Multiple Choice

The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?

• radiation
• conduction
• convection
• insulation

Multiple Choice

The butter on top of the pancake melted.

• Conduction

• Convection

• Radiation

Multiple Choice

Which will most likely occur when raw egg is placed on black pavement on a hot, summer day?

• The pavement will conduct the heat and cook the egg.
• The egg will reflect the heat and make the pavement hotter underneath.
• The egg will absorb the heat  and leave the pavement hotter underneath.
• The pavement will absorb the heat from the egg, and the egg will stay raw.

Multiple Choice

Air conditioner cooling the hot room.

• Conduction

• Convection

• Radiation

Multiple Choice

Jordan places a hot spoon into a container of ice cream. How does this help him scoop  out the ice cream? 

• The coolness from the ice cream is conducted to the spoon making it easier to scoop out.
• The coolness from the ice cream is radiated to the spoon making it easier to scoop out.
• The warmth of the spoon is conducted to the ice cream  making it easier to scoop out.
• The warmth of the spoon is radiated  to the ice cream making it easier to scoop out.

Multiple Choice

Adding hot water to your cold bath water.

• Conduction

• Convection

• Radiation

Multiple Choice

Which describes what can happen as a result of radiation?

•  A piece of wood burns in a fire.
• A shirt is hot after having been  ironed.
• A can of soup is heated in a pot on a stove.
• A car’s inside temperature rises  to over 100 degrees on a sunny day.

Multiple Choice

Ironing a wrinkled shirt.

• Conduction

• Convection

• Radiation

Multiple Choice

Which best describes the process of convection?

• Convection is the primary way  heat travels  through rays.
• Convection is the primary way heat travels  through metals.
• Convection is the primary way heat travels  through appliances.
• Convection is the primary way heat travels  through liquids and gasses.

Multiple Choice

Laying under the sun to get tan.

• Conduction

• Convection

• Radiation

Multiple Choice

Tom puts a metallic cover over his car’s windshield after parking. How does this control  the sun’s rays  during a sunny day?

• It prevents heat energy from leaving the car.
• It controls the temperature by providing shade.
• It reflects the sun’s rays away from the windshield.
• It absorbs heat in the windshield  protector and  cools the car.

Multiple Choice

An ice cube melts when you hold it in your hand.

• Conduction

• Convection

• Radiation

Multiple Choice

Which is an example of heat being transferred by conduction?

• a furnace heating the air in a school
• an ice cube melting in a person’s hand
• a pot of water on a stove boiling
• the sun heating water in a swimming pool

Multiple Choice

You feel hot after reading for a long time under a lamp.

• Conduction

• Convection

• Radiation

Multiple Choice

Near the ceiling of a room the air is warmer. The warm air rises because of

• conduction

• convection

• radiation

Multiple Choice

Hair gets hot when a hair straightener is used on it.

• Conduction

• Convection

• Radiation

Multiple Choice

• Conduction

• Convection

• Radiation

Multiple Choice

A bowl of soup cools.

• Conduction

• Convection

• Radiation

Multiple Choice

A group of friends gather around a fire to stay warm.

• conduction
• convection
• radiation

Multiple Choice

What is an insulator?

• Something that keeps objects warm

• Something that stores thermal energy

• Something that slows the transfer of thermal energy

• Something that allows the transfer of thermal energy

Multiple Choice

How does most insulation in the home work?

• The insulating material has a vacuum that doesn't allow conduction or convection to occur

• The insulating material has trapped air pockets that slows conduction and convection from occurring

• All the insulating material is put at the top of the house because heat rises

• All the insulating material is put in the walls because they have a large surface area

Multiple Choice

Installing insulation...

• keeps your house warm in the winter and cool in the summer

• only keeps your house warm in the winter

• only keeps your house cool in the summer

• keeps your house cool in the winter and warm in the summer

Multiple Choice

Double glazing works by...

• Setting up a convection current in the gap between the windows that stops thermal energy transfer

• A layer of foam between two window panes traps air and stops conduction and convection

• Thick layers of glass ensure that conduction takes longer so it slows the rate of thermal energy transfer

• A trapped layer of air between two window panes stops conduction and convection

Multiple Choice

Which of the following would reduce the dissipation of energy from a house to the surroundings?

• insulation

• large walls

• thin walls

• metal walls

Multiple Choice

___________________ are materials that ALLOW heat and electricity to move easily through them.

• Conductors

• Insulators

Multiple Choice

______________ are materials that RESIST the flow of heat or thermal energy.

• Conductors

• Insulators

Multiple Choice

Claire wants to complete her circuit with a conductor.  What object is her best option?

• rubber
• a penny
• card board
• plastic spoon

Multiple Choice

The plastic covering is there to:

• Provide a conductor for electrical energy to flow.
• Provide an insulator so that electrical energy will not pass outside of the wires.
• Provide a conductor so that electrical energy can NOT flow.
• Provide an insulator so that electrical energy can flow.

Multiple Choice

All of the following are insulators of electricity except _____.

• glass
• rubber
• plastic
• metal