Review: Physics
1st term
Question 1:
The higher the temperature of a
body is,
a. the larger the particles are.
b. the faster the particles move.
c. the slower the particles move.
d. the smaller the particles are.
Question 2:
The international unit of
termperature is...
a. Fahrenheit
b. Kelvin
c. Degrees Celsius
d. Degrees
Question 3:
Particles of a body...
a. always move.
b. never move.
c. only move above 0°C.
•
only move above 0 Kelvin.
Question 4:
The thermometer below is called...
a. Kelvin-thermometer
b. Galileo-thermometer
c. Newton‘s thermometer
d. Einstein‘s thermometer
Question 5:
The random motion of particles is
called...
•
Newtonian motion
a. Brownian motion.
b. Joule's motion.
c. Kelvinian motion.
Question 6:
-20°C is equal to
a. -293 Kelvin
b. -253 Kelvin
c. 253 Kelvin
d. - 293 Kelvin
Question 7:
273 K is equal to
a. 10°C
b. -20°C
c. -10°C
d. 20°C
Question 8:
One possible way of transferring
heat is...
a. thermal convection.
b. thermal correction.
c. thermal radiation.
d. Thermal conduction.
Question 9:
How does thermal conduction
work?
a. Warm liquids and gases rise.
b. Particles pass on their extra motion
to other particles.
c. Particles of heated bodies begin to
move faster.
d. Warm bodies radiate energy to
others.
Question 10:
What's the best way to save
energy?
a. By using energy-saving lamps.
b. By thermal insulation.
c. By switching off electric devices
when not used.
d. By taking a shower instead of a
bath.
Question 11:
Another word for heat radiation is...
a. UV radiation.
b. Visible radiation.
c. Infrared radiation.
d. Electromagnetic
radiation.
Question 12:
Energy is measured in...
a. Joules
b. Newtons
c. Celsius.
d. Watts
Question 13:
This experiment is used to show...
a. thermal radiation.
b. thermal conduction.
c. Thermal insulation.
d. thermal convection.
Question 14:
Which is a good conductor?
a. iron
b. gold
c. wood
d. plastic
Question 15:
A vacuum flask can keep drinks hot
because it reduces...
a. heat convection (stopper!).
b. heat conduction (doublewalled with a gap!).
c. heat radiation (walls with
silvery surfaces!).
Question 16:
Why does warm water rise when
surrounded by cooler water?
a. Warm water has a greater density.
b. Warm water has a lower density.
c. Warm water takes up more space.
d. Warm water takes up less space.
Question 17:
Solar cells are used for...
a. producing warm water.
b. burning fossil fuels.
c. producing electric energy.
d. saving energy.
Question 18:
For heating 1kg of water by 1°C,
you need 4,2 kJ of energy. This
value is called...
a. heat conductivity.
b. heat capricity.
c. heat capacity.
d. heat civility.
Question 19:
Condensation is the phase change
from...
a. liquid to gas.
b. gas to liquid.
c. solid to liquid.
d. liquid to solid.
Question 20:
In most cases, a liquid is...
a. denser than a gas.
b. equally as dense as
a gas.
c. less dense than a
gas.
Question 21:
When an ice cube melts,
a. the volume decreases.
b. the volume increases.
c. the density increases.
d. the density decreases.
Question 22:
The lowest layer of the atmosphere
is called the...
a. troposphere.
b. ionosphere.
c. stratosphere.
d. hydrosphere.
Question 23:
What are lines called that link
regions of equal air pressure?
a. isothermes
b. isotropes
c. isomorphes
d. isobars
Question 24:
Air is mostly made up of...
a. nitrogen.
b. oxygen.
c. carbon dioxide.
d. helium.
Question 25:
We can reduce our CO2emissions...
a. by saving energy.
b. by burning fossil fuels.
c. by using renewable
energy resources.
d. by not breathing.
CONGRATULATIONS !!!!!