Physics Quiz

What is the law of reflection of light?

• Light reflects at a random angle.

• The angle of incidence is greater than the angle of reflection.

• Reflection of light depends on the color of the object.

• The angle of incidence is equal to the angle of reflection.

What factors affect the speed of sound?

• Temperature, humidity, and medium

• Pressure, altitude, and time

• Frequency, wavelength, and amplitude

• Distance, weight, and color

How does a lever make work easier?

• Increasing weight

• Mechanical advantage

• Reducing friction

• Leveraging power

Why does light change direction when it passes from air to glass?

• Diffraction

• Absorption

• Refraction

• Reflection

Differentiate between conduction and convection.

• Conduction is the transfer of electricity, while convection is the transfer of heat.

• Conduction is heat transfer through fluid movement, while convection is heat transfer through a material without movement.

• Conduction is heat transfer through a material without movement, while convection is heat transfer through fluid movement.

• Conduction is a form of radiation, while convection is a form of conduction.

Give an example of an object in linear motion.

• train

• plane

• bicycle

• car

How can you determine the equilibrium of an object?

• By ensuring that the sum of all forces acting on the object is zero.

• By listening to the sound the object makes

• By measuring the temperature of the object

• By counting the number of colors on the object

How do plants contribute to the oxygen cycle?

• Plants release oxygen during photosynthesis.

• Plants release carbon dioxide during photosynthesis.

• Plants contribute to the nitrogen cycle.

• Plants absorb oxygen during photosynthesis.

What are the properties of hydrogen gas?

• Red, fragrant, sour, poisonous, combustible, rarest element

• Blue, scented, bitter, safe, non-reactive, heaviest element

• Yellow, pungent, sweet, harmful, non-flammable, densest element

• Colorless, odorless, tasteless, non-toxic, highly flammable, lightest element

What is the angle of incidence equal to in reflection of light?

• Greater

• Lesser

• Opposite

• Equal