You can't see the difference in these balls by appearance alone. Each pair
contains two balls of the same size - but one of the pair will bounce
(elastic) and the other doesn't (inelastic). These balls are great when used
to teach about elastic and inelastic collisions and momentum (force and
kinetic energy). Inelastic balls possess excellent impact absorption
properties. The rubber has great internal absorption of the input energy and
is able to dampen the impact from a colliding object without giving the object
a reaction force - therefore it does not bounce. Elastic balls do not absorb
energy and bounce. Diameter: 25mm.
**Pack includes 10 pairs (10 x elastic and 10 x inelastic balls).**
UK Delivery
Free on orders greater than £100
Isles Delivery
Free on orders greater than £250
Happy & Unhappy Ball (10pairs) PACK
Item #: XLM230010£29.62
Happy & Unhappy Ball (10pairs) PACK
UK mainland (excluding Northern Ireland, Scottish Highlands, Channel Islands and the Isle of Wight) :
Orders less than £100.00 are subject to a £7.50 carriage and packing charge.
Free delivery is available on all standard stock orders over £100.00 (exclusive of VAT, Hazardous Chemical Delivery Surcharge)
Northern Island, Isle of Man, Scottish Highlands, Channel Islands and Scilly Isles:
Orders less than £250.00 are subject to a £12.00 carriage and packing charge.
Free delivery is available on all standard stock orders over £250.00 (exclusive of VAT, Hazardous Chemical Delivery Surcharge)
International :
We ship to most countries and carriage is quoted as extra. Please contact our international team for further information.
