Physics True and False quiz?

rugged cheese on a laptops motor chinese chicken with a sprinkle of cajun sauce

Saucepan have plastic handles because plastics are good conductors of heat.

False : They have plastic handles becuase plastic is a POOR conductor of heat

Houses are painted in hot countries, white so it can reflect radiation and stay cool.

True

When you have double glazing heat can still escape through a window by radiation.

True : Double glazing reduces heat lost by conduction

Heat energy travels to the earth from the Sun by conduction. Once again

False : It gets here by radiation

The particles at the hot end of a metal rod vibrate vigorously.

True

A thick piece of glass is a better insulator than two thin ones with a layer of air between them.

False : Its the air gap that increases the insulation value

When fluids are heated they become less dense and fall.

False : Heated fluids become less dense and RISE

A black car will absorb more radiation than a white car and will therefore remain cooler.

False : It absorbs more radioation (In the sun) and gets HOTTER

i think of A.D.D. had the splendid theory. even nevertheless, a number of those are exciting. (greater are in basic terms quickly purposes of the definitions.) #9: An merchandise moving to the splendid with a persevering with acceleration to the left will, at last, initiate moving to the left. #8: i think of no longer. think of of action following a discern-8 course. for each action on the course there is its top opposite. The velocities will cancel out, V = 0, even nevertheless the value could be consistent. #6: Like #8 in that the common speed relies upon upon the course. #4: around action at a persevering with speed has acceleration in direction of the middle...

1. f

2.t

3.t.

4.f

5.t

6.f

7.yeah, they do become less dense, but dont understand the fall bit.

8.f- gets hotter

xxx

houses - true

glazing - true

particles - true

the remainder are false

do your own work!

F,T,T,F,T,F,F,F