Mechanics - Forces
Forces
What is the weight of an object?
The force acting vertically downwards.
What is the normal reaction?
The force acting perpindicular from a surface when an object is in contact with the surface.
What is the normal reaction the same as?
The weight of an object on a surface.
What is the name of the force acting perpindicular from a surface on an object resting on the surface?
The normal reaction.
What is friction?
The force which opposed the motion between two rough surfaces.
What is the force called which opposes the motion between two rough surfaces?
Friction.
What is the force of tension?
The force exerted by a rope/string/wire on an object.
What is the special name for the contact force for a rope or string?
Tension.
What is the force of thrust/compression?
The force exerted by a light rod on an object.
If the “rope force” is tension, then the “rod force” is…?
Thrust/compression.
If the “rod force” is thrust/compression, then the “rope force” is…?
Tension.
What is buoyancy?
The upward force on a body that allows it to float in a liquid.
The force allowing a body to float in a liquid is called?
Buoyancy.
What is air resistance?
The force of friction when an object moves through the air.
2022-01-09
What is a static equilibrium?
Where the net force is zero and a particle is at rest.