Speed And Newtons Laws Flashcards
0
Q
Acceleration
A
Is the rate at which velocity changes
1
Q
Speed formula
A
Speed= distance/time
2
Q
Velocity
A
Is speed in a given direction
3
Q
3 ways acceleration changes:
A
1) Increasing speed
2) Decreasing speed
3) changing directions
4
Q
The SI unit for acceleration
A
Is meters per second per second
5
Q
Force
A
Is a push or pull
It is described by it’s strength and by the direction in which it acts
6
Q
Friction
A
Is the force that two surfaces exert on each other when they run against each other
7
Q
Gravity
A
Is a force that pulls objects toward each other
8
Q
2 factors that affect the gravitational attraction between objects:
A
1) Mass of the object
2) Distance between the objects
9
Q
Air resistance
A
All objects fall at the same rate due to gravity
