Sound & Light Pre-Test Assessment

Which of the following is a living source of sound?

• Wind blowing

• Car horn

• Bird chirping

• TV playing

What causes sound to be produced?

• Reflection of light

• Vibrations caused by a force

• Flow of electricity

• Heat production

What do we call objects that do not produce their own light?

• Transparent

• Luminous

• Non-luminous

• Opaque

What term is used to describe materials that allow light to pass through them?

• Opaque

• Translucent

• Transparent

• Reflective

Which of these is an example of a non-luminous object?

• Moon

• Lamp

• Star

• Earth

Why does sound travel faster in water than in air?

• Water molecules are farther apart

• Water molecules are closer together

• Sound doesn't travel in water

• Water absorbs sound

What happens when white light passes through a prism?

• It remains white

• It reflects off the surface

• It splits into seven colors

• It forms a shadow

How do we hear sounds?

• Through vibrations detected by our skin

• Through vibrations detected by our ears

• Through light waves that reach our eyes

• Through heat waves

What does a high-pitched sound have?

• A large amplitude

• A high frequency

• A low frequency

• A large wavelength

What happens when light passes through a transparent material?

• It is completely blocked

• It is absorbed

• It passes through and we can see clearly

• It bends and scatters