light and sound

An object that allows all the light to pass through it

• translucent

• opaque

• transparent

• None

An object which gives out light is called ________________ object.

Choose the correct option

• light can bend around an object

• light needs a medium to travel

• when an object blocks the light, a shadow is formed

• All of the above

If the sun is towards your left, your shadow will be formed towards your

• left

• right

• back

• shadow will not be formed

Musical instruments produce sound due to ___________

Growing more trees can increase noise pollution.

• True

• False

Sound is a form of? 

• energy
• pitch
• volume

An object that does not vibrate cannot produce

• sound
• light
• heat
• electricity

A place where no sound exists is...

• in the air

• under water

• space

• all of the above

Why do we see lightning before we hear the thunder?

• Our eyes trick us
• Light travels faster than sound
• they're two separate things