Force Flashcards
Flashcards on the concept of FORCES
What is the formula for working out Force?
Force = mass x acceleration (F=ma)
What is mass?
The amount of matter an object contains.
What is weight?
Weight is a measure of the force exerted on the object by gravity, or the force needed to support it.
What unit is force measured in?
Newtons (N)
What happens if the forces on an object are unbalanced?
The object will either accelerate or decelerate.
What is Force?
A push or pull applied to or against a mass.
What happens if the forces on an object are balanced?
If the object is moving, it will be moving at a constant speed. If it is not moving, it will remain stationary.
What is Friction?
Friction is a force that occurs when an object moves, or tries to move, against another object or fluid. Friction often acts to oppose the movement of an object.
What is Air Resistance?
Air resistance is the result of collisions of the object’s leading surface with air molecules. The more air molecules it collides with, the greater the resistance.
Every force has measurable…
Size and direction.
A force acting in opposition of gravity is called…
Support force.
A force opposing thrust is…
Friction/ drag.
Define terminal velocity.
Terminal velocity is the point in an object’s fall where it is no longer accelerating due to the air resistance and becoming equal to the velocity.
