Science Revision Quiz on Concept 2.2

All the following materials are liquid materials, except ...........

• a. petroleum.

• b. glass before cooling.

• c. plastic.

• d.concrete before drying.

. Shrink-wrap is created when we ..........

• a. add heat to steel.

• b. cooling glass.

• c. cooling steel.

• d. add heat to plastic.

_ Concrete ...........

• a. becomes liquid after it dries.

• b. consists of rock, sand and water.

• c. controls your body temperature.

• d. is originated from petroleum.

'. When a marble goes down on a ramp, its stored potential energy ...........

• a. increases.

• b. doesn't change.

• c. changes into kinetic energy.

• d. changes into light energy.

. Due to the friction between a moving object and a flat road, the ........... energy of

the moving object changes into ........... energy.

• a. kinetic — thermal

• b. thermal — kinetic

• c. potential — thermal

• d. kinetic — potential

Matter changes its state by gaining or losing thermal energy.

• True

• False

Plastic is better than wood in making the handle of cooking pots.

• True

• False

_ Plastic and wood resist and slow down the heat transfer through them.

• True

• False

_All the following materials are considered thermal conductors, except ..

• a. copper.

• b. iron.

• c. wood.

• d. aluminum.

Heat is transferred through copper and iron by..........

• a. radiation only.

• b. radiation and convection.

• c. conduction only.

• d. conduction and convection.