Seesaw Mechanics and Forces

The video tutorial explains the parts of a seesaw, focusing on the lever and pivot. It discusses how weight distribution affects balance, emphasizing that a heavier person should sit closer to the pivot. The concept of weight as a force is introduced, with its calculation explained. The tutorial also covers the turning effect, or moment of force, which occurs when weight is applied at a distance from the pivot. The video concludes with a reminder of the importance of understanding these concepts for exams.

What are the two main components of a seesaw?

• Lever and fulcrum

• Base and fulcrum

• Lever and pivot

• Pivot and base

Where should a heavier person sit on a seesaw to achieve balance?

• Further from the pivot

• At the center

• On the edge

• Nearer to the pivot

How can the weight of a lighter person balance a heavier person on a seesaw?

• By sitting closer to the pivot

• By sitting on the edge

• By sitting at the center

• By sitting further from the pivot

What is the formula to calculate weight?

• Weight = mass - gravitational acceleration

• Weight = mass x gravitational acceleration

• Weight = mass / gravitational acceleration

• Weight = mass + gravitational acceleration

Why does a seesaw move differently when sitting at the edge compared to near the pivot?

• Because the weight is directly above the pivot

• Because the pivot is stronger at the edge

• Because the force is greater at the edge

• Because the pivot causes rotation

What happens when a force is applied directly above the pivot?

• The seesaw tilts

• There is no turning effect

• The seesaw moves in a straight line

• The seesaw rotates

What causes the turning effect on a seesaw?

• The pivot itself

• The weight from the pivot

• The length of the seesaw

• The height of the pivot

What is the term used to describe the turning effect of a force?

• Torque

• Balance

• Moment of a force

• Equilibrium

When does a force not cause a turning effect on a seesaw?

• When it is applied directly above the pivot

• When it is applied near the pivot

• When it is applied at the edge

• When it is applied at the center

Why is the concept of the moment of a force important in seesaw mechanics?

• It describes the seesaw's height

• It determines the seesaw's color

• It explains the seesaw's length

• It helps in understanding balance