Forces and effects

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

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

Sound needs a _____ to travel

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

Clay is an example of a _______ object

Rigid objects ______(58)

Volume is measured in ______

To make an object move you have to ____?

T/f : people cannot hear ultrasound

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

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

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

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 : a loud sound is more intense

A ____ occurs when a sound hits a distant obstacle.

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

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

______ is the highest pitch that exists

Sound travels in a ______line.

T/f: forces can break objects

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

When we sing we use our _____ _______

When we speak or sing we use our _____ _____

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

T/f: sounds travel slower in solids than liquids

______ _______ do not return to their initial shape.