Motion Flashcards
Newton’s 1st Law
Law of Motion - Law of Inertia
What does Newton’s first law state?
An object at rest will stay at rest, and an object in motion will stay in motion at constant velocity, unless acted upon by an unbalanced force.
Newton’s 2nd Law
Law of Acceleration
What does Newton’s 2nd Law state?
F = M x A
Newton’s 3rd Law
Action and reaction
What does Newton’s 3rd Law state?
For every action there is an equal and opposite reaction
Distance
how much ground an object has covered during its motion - the length of space between two points
Displacement
how far out of place is an object - the object’s overall change in position
How to calculate speed?
Distance / Time
How to calculate time?
Distance / Speed
How to calculate distance?
Speed x Time
Acceleration
increase in speed or rate - the rate of change of velocity
Deceleration
reduction in speed or rate
Rate of acceleration formula
final velocity - initial velocity ÷ time taken
Rate of deceleration formula
final velocity - initial velocity ÷ time taken (with a minus symbol)
What is the use of ticker timers?
to measure the speed of an object in motion
What happens if the ticker timer objects speed decreases?
the dots will be closer
What happens if the ticker timer objects speed increases?
the dots will be further apart
What happens if the ticker timer objects speed remains constant?
the dots will all have a similar distance
How do you calculate speed using a distance-time graph?
rise (distance) ÷ time (run)
Mass
the amount of matter in a material
Weight
a measure of how the force of gravity acts upon that mass
What does gravity causes?
gravity causes a mass to have weight
Weight formula
Weight = Mass x Gravity
