A.degree celsius.
B.kelvins.
C.joules.
D.amperes.
2.Which of the interest does not produce heat?
A.Passing an electric catamenia through a wire.
B.Adding a piece of zinc to hydro acid.
C. rub your hands vigorously together.
D.Sparying alcohol on your leg.
3.The main arising of heat for the Earth is…
A.the Sun.
B.the electric current.
C.the combustion of wood.
D.the combustion of fossil fuels.
4.Which statement about heat is in line up?
A. change travels meteoric by convection through a gas.
B.Heat increases the temperature of a subtance.
C.Heat can travel through solids, liquids and gases.
D.A large aim contains more heat than a small object of the said(prenominal) temperature.
air
water
5.Which statements about the experiment shown in the diagram are correct?
I Bubbles of air will be seen in the water.
II Heat from the hands reaches the air in the flask by radiation.
triple The air in the flask expands on warming.
IV The flask is a poor conductor of heat.
A.II and IV except
B.I,II and III only
C.I, III and IV only
D.I,II,III and IV
6.In which situation depict below is an insulator of heat not used?
A. internal-combustion engine blocks are covered with sawdust.
B.The handle of a soldering press is made of plastic.
C.
Frying pan are made of aluminium.
D.Birds bug their feathers on a cold day.
7.Which of the following are the reasons wherefore mercury is used in thermometers?
I It is a unattackable conductor of heat.
II It has a high boiling point.
III It contracts and expands uniformly at all temperatures.
A.I and II only
B.I and III only
C.II and III only
D.I, II and III
8.Which of the following brand use of the contraction of metal?
I Fixing of mobilise wires.
II Gaps in railway tracks.
III Bimetallic striptease artist in a fire alarm.
A.I and II only
B.I and III only
C.II and III only
D.I, II and III
9.In which of the following subtances does...If you want to get a full essay, gear up it on our website: Orderessay
If you want to get a full essay, wisit our page: write my essay .
No comments:
Post a Comment