Activity 8.6:
Aim: To study the relationship between moment of force, effort and perpendicular distance from pivot to force.
Materials: Nut and screw
Apparatus: Spanner
Instruction
1. Prepare an item that is fitted with a nut and screw.
2. Hold a spanner in position X as shown in Figure 8.25 and tighten the nut. Then, hold the spanner in position Y as shown in Figure 8.26 and tighten the nut. Which position requires more effort? Which position results in greater moment of force?
Answer:
2.
Position X requires a bigger force.
Position Y results in a bigger moment of force.
Aim: To study the relationship between moment of force, effort and perpendicular distance from pivot to force.
Materials: Nut and screw
Apparatus: Spanner
Instruction
1. Prepare an item that is fitted with a nut and screw.
2. Hold a spanner in position X as shown in Figure 8.25 and tighten the nut. Then, hold the spanner in position Y as shown in Figure 8.26 and tighten the nut. Which position requires more effort? Which position results in greater moment of force?
Answer:
2.
Position X requires a bigger force.
Position Y results in a bigger moment of force.