Speed And Newtons Laws Flashcards
(10 cards)
Velocity is:
Speed in a given direction
Speed formula
Speed = distance / time
Acceleration is:
The rate at which velocity changes
3 ways acceleration changes:
1) increasing speed
2) decreasing speed
3) changing directions
Gravity is:
a force that pulls objects towards each other
What are 2 factors that affect gravitational attraction between objects?
1) the mass of the object
2) the distance between objects
What is Newton’s 1st Law of Motion?
an object in motion will stay in motion, an object at rest will stay at rest unless acted upon by an outside force
What is Newton’s 2nd Law of Motion?
acceleration depends upon the object’s mass and force acting on the object
What is Newton’s 3rd Law of Motion?
for every action, there is an equal but opposite reaction
Friction is:
the force that two surfaces exert on each other when they rub against each other
