3B Scientific Set of 6 Steel Balls - Manual

2
Instruction sheet
3B SCIENTIFIC® PHYSICS
U15014 Set of six steel balls
3/03 ALF
®
Steel balls suitable for experiments on elastic and inelas-
tic collisions on a slide rail.
1. Description, technical data
Set of 6 hardened and polished steel ball bearings.
Diameter:
30 mm each
Weight: 110 g each
2. Instructions for use
• Experiment is set up on a metal slide rail (e. g. U17150)
or using 2 stands (U15004) on stand components.
• Track or stands should be adjusted to the horizontal
using a spirit level. Fine adjustment can be achieved
using the screws on the stand base.
2.1 Elastic collisions
•
Roll one ball with various degrees of strength against
another stationary ball.
• Observe the speeds of the balls before and after
impact. (The stationary ball moves away at the same
speed while the impacting ball comes to rest. Mo-
mentum is transferred completely from one ball to
the other.)
2.2 Inelastic collisions
•
Attach sticky tape to a stationary ball to ensure that
a collision will be inelastic.
•
Roll one ball with various degrees of strength against
the stationary ball.
• Observe the speeds of the balls before and after
impact. (After impact, both balls move at approxi-
mately half the original speed of the impacting ball
before the collision.)
2.3 Several balls
•
Roll one ball into 5 other balls that are touching one
another.
• Observe the speed of all the balls after an elastic
collision.
•
Repeat the experiment with 2 (3) balls rolling one
behind the other into 4(3) stationary balls that are
touching one another.
3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com • Technical amendments are possible