6 Questions
What happens to a stationary rigid body when a force is applied on it?
It starts moving in a straight line in the direction of the force.
What is the axis of rotation?
The vertical axis passing through the pivot point about which the body turns.
What is the effect of applying a force on a rigid body that is pivoted at one point?
It begins to turn about the pivot point.
Define a rigid body in terms of its constituent particles.
A rigid body is one in which the inter-spacing between its constituent particles does not change when a force is applied.
What is 1 kgf equivalent to in newtons?
9.8 N
What can a force cause when applied to a non-rigid body?
A force can cause both change in its size or shape, and motion.
Study Notes
Turning Effect of a Force
- When a force is applied to a stationary rigid body, it moves in a straight line in the direction of the force.
- If the body is not free to move, but is pivoted at a point, it begins to turn about that point when a force is applied.
Axis of Rotation
- The vertical axis passing through the point about which the body turns is called the axis of rotation.
Force and Pressure
- 1 kgf is equal to 9.8 N.
Characteristics of Rigid and Non-Rigid Bodies
- A rigid body is one where the inter-spacing between its constituent particles does not change when a force is applied.
- A non-rigid body is one where the inter-spacing between its constituent particles changes when a force is applied.
- A force can cause only a change in motion in a rigid body.
- A force can cause both a change in size or shape and motion in a non-rigid body.
Explore the concepts of turning effect of a force, axis of rotation, force and pressure, and characteristics of rigid and non-rigid bodies in physics.
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