Demonstration: This experiment shows that it is not possible to measure the weight of a body in free fall using a forcemeter.

Practical Activity 14-16

Demonstration: It may seem surprising that the motion of all objects falling freely under gravity is the same. Click here for...

Practical Activity 14-16

Demonstration: This is a fairly elementary demonstration, but it will help students to develop a ‘feel’ for a newton of force...

Practical Activity 14-16

Demonstration: American astronauts on the Moon repeated Galileo's classic experiment.

Practical Activity 14-16

Class practical: Gravitational force can act at a distance ; it shows little variation over short distances, but does vary...

Practical Activity 14-16

An object in free fall is said to be ‘weightless’ but is better described as ‘apparently weightless’. Questions about...

Teaching Guidance 14-16