Sound Junior Science: Physics. Revised Science Syllabus Extract. Learning Outcomes for 3B5 and 3B 6. On completion of this section, students should be able to. OP40 show that sound is a form of energy, and understand that sound is produced by vibrations .
Junior Science: Physics
On completion of this section, students should be able to
OP40show that sound is a form of energy, and understand that sound is produced by vibrations
OP41show that sound transmission requires a medium and echoes are reflected sound
On completion of this section, students should be able to:
OP42 understand that the ear detects sound vibrations and that exposure to very loud sounds can cause damage to the hearing
OP43 recall that the speed of sound is less than the speed of light
OP44 explain the time lag between seeing and hearing the same event
What is sound?
Sound energy can be converted into other energy forms
Sound is created when objects vibrate
How much sound causes permanent damage?
Below this level (70dB) – hearing damage negligible
O’Callaghan, M., Reilly, S. and Seery A., The Educational Company