Question 21
Think like a scientist: Measuring balanced and unbalanced forces. You will investigate the effects of balanced and unbalanced forces. Work in pairs. You will need: two forcemeters, piece of string, coloured tape, scissors. Set up the equipment as shown in the diagram. Each person in the pair holds one forcemeter (also known as a newton meter). The string should be tight. The coloured tape on the string should be lined up with the coloured tape on the desk. Each person pulls with an equal force, for example, 4 N.
One person decreases their force by 1 N. If the force was 8 N, then decrease the force to 7 N. Describe what happens to the string.
One person decreases their force by 1 N. If the force was 8 N, then decrease the force to 7 N. Describe what happens to the string.
