Linear motion Flashcards
What is the difference between scalar and vector measurements?
Scalar is size but vector also measure direction.
What is the formula for acceleration?
Change in velocity / Change in time.
What is the formula for momentum?
Mass x velocity.
What is meant by internal forces?
Forces generated by skeletal muscle.
What is meant by external forces?
Forces from outside of the body.
What is meant by vertical forces?
Forces that act upwards or downwards.
What is meant by horizontal forces?
Forces that act sideways upon things.
What is a reaction force?
A force always equal and opposite to the action force provided.
What is the formula for velocity?
Displacement/ Time.
How does velocity impact air resistance?
Increase in velocity = Increase in air resistance
What factors increase friction of an object?
Roughness of the surface, mass of the object, and temperature of the surface.
