circumference: 65-67 cm
weight: 260-280 g
inside pressure: 0.30-0.325 kg/cm2
When a ball is dropped, it no longer has potential energy. Before it drops, you can calculate the potential energy (= mgh); to actually measure this, you would have to measure the force, and multiply that by the distance.
For tennis balls, the height that a ball bounces is measured by a series of tests. Refer to the ITF link, below, for further information.
spring scale
Determine the mass, and then put the ball bearing in a known amount of water, and see what the increase in volume is (using cm3 or mm). Then do Mass divided by Displased Water, and you have density.
You need to do the water displacement method. The water displacement needs a graduated cylinder and water.
with ball gauge
its a golf ball
pie
Tape measure
Float the ball in water and calculate the displacement.
yes
Measure it.
The answer will depend on what characteristic of the ball is being measured: its radius, volume, mass, weight, shine?
A vernier caliper should be used to measure the diameter of a steel ball.
Put a thread arround the ball and measure the thread's length.
When a ball is dropped, it no longer has potential energy. Before it drops, you can calculate the potential energy (= mgh); to actually measure this, you would have to measure the force, and multiply that by the distance.
The instrument used to measure the diameter of spherical objects is called calipers.