Forces and effects

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 : not all objects respond to force the same way.

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

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

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

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

T/f : people cannot hear ultrasound

T/f: forces can break objects

Sound needs a _____ to travel

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

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

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

Rigid objects ______(58)

T/f: sounds travel slower in solids than liquids

______ is the highest pitch that exists

A ____ occurs when a sound hits a distant obstacle.

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

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

______ _______ do not return to their initial shape.

When we sing we use our _____ _______

Sound travels in a ______line.

When we speak or sing we use our _____ _____

Volume is measured in ______

Clay is an example of a _______ object

To make an object move you have to ____?