Forces and effects

T/f: forces can break objects

The pitch of a sound depends on the _____(6)

T/f : the sounds made by whales travel long distances because there are few obstacles in its path. los sonidos que emiten las ballenas recorren largas distancias porque hay pocos obstáculos en su camino.

T/f: objects that break do not change their shape.

To make an object move you have to ____?

Clay is an example of a _______ object

Rigid objects ______(58)

T/f: sounds travel slower in solids than liquids

____ is the force that slows down and stops a moving object when it is in contact with another object.

T/f: When an object vibrates it makes big movements very slowly

T/f : people cannot hear ultrasound

______ is the highest pitch that exists

______ _______ do not return to their initial shape.

T/f: sounds travel faster in liquids than in gases

T/f: forces can’t make objects change shape

Sound travels in a ______line.

T/f: An object at rest can move without a force. (59)

A ____ occurs when a sound hits a distant obstacle.

When we push or pull something, or pick up an object up from the ground we are using _______(58)

T/f : a loud sound is more intense

When we speak or sing we use our _____ _____

When we sing we use our _____ _______

Sound needs a _____ to travel

______ ______ go back to their initial shape when a force stops acting upon them.

Volume is measured in ______

T/f : not all objects respond to force the same way.