Lesson starters. 4, Sound through a medium : shattering a glass.

Format:

Video

Contributor:

Teachers TV (Television Channel), Producer.

Series:

Academic Video Online

Language:

English

Subjects (All):

Science--Study and teaching--Great Britain.

Science.

Sounds--Study and teaching.

Sounds.

Genre:

Instructional television programs.

Physical Description:

1 online resource (2 min.).

Other Title:

Sound through a medium : shattering a glass

Place of Publication:

[England] : Teachers TV/UK Department of Education, 2009.

Language Note:

In English.

Original language in English.

Summary:

This short demonstration on how sounds are made is ideal for use as a lesson starter in KS3/4 science. A loudspeaker is connected to a sound generator and a glass is placed in front of the loudspeaker. A specific frequency of sound is generated. The volume is then increased until the glass shatters. A slow motion camera is used to record the process. Played back, the video shows the glass shaking and bending, then cracking. The question for students to consider is: Why does the glass break? See the accompanying teachers' notes for a full explanation of the science underpinning the demonstration, plus suggested extension activities.

Notes:

Title from resource description page (viewed April 8, 2015).

OCLC:

874057271