MID-TERM TEST(GRADE 9)PHYSICS

The following are luminous objects except.

• A. moon

• B. stars

• C. sun

• D. fire flies

_____can be formed by bringing a magnet close to a loop of wire carrying current

• A. Electromagnetism

• B. Electricity

• C. Electrocution

• D. Magnetism

Which alphabet in Louis De Broglie equation shows the particulate nature of light?

• A. S

• B. R

• C. Q

• D. P

Which of the following is not a component of white light?

• A. yellow

• B. blue

• C. indigo

• D. black

The process by which green plants manufacture their own food using sunlight energy is called

• A. chemosynthesis

• B. photosynthesis

• C. gravitosynthesis

• D. photolysis

. ____is the effect of the interaction between electric field and magnetic field.

• A. Electromagnetism

• B. Electricity

• C. Electrocution

• D. Magnetism.

The stream of energy carried by light is called

• A. photons

• B. proton

• C. quartz

• D. quanta

. You can see through a transparent glass by a phenomenon of

• A. polarisation

• B. diffraction

• C. reflection

• D. refraction

All except one has something to do with light.

• A. solar cells

• B. rainbow

• C. thermocouple

• D. photosynthesis

The fish in the ocean sees everything within the water body through total internal____

• A. polarisation

• B. interference

• C. refraction

• D. reflection