Formulas
Speed =
Distance divided by time
kg
MASS
A CHANGE in speed or direction
Acceleration
If a car can drive 30 miles in 30 minutes. Then what is the car's average speed in mph?
60mph
Resistance that one surface or object encounters when moving over another surface
Friction
Force =
Mass times Acceleration
N
Force
The speed AND direction of an object
Velocity
If a 4.5kg baseball is accelerating at 3 m/s^2, then what is its net force?
13.5 N
For every action, there is a reaction of _____ force and in the ________ direction.
Equal; Opposite
Mass =
Force divided by Acceleration
m/s
SPEED
When the net force = 0
Balanced Forces
A student pushes left on a box with 8N of force. Her peer is pushing on the same box in the same direction with 4N of force. What is the net force acting on the box?
12N Left
The force that attracts a body toward the center of the earth
Gravity
Acceleration =
Force divided by Mass
m/s^2
ACCELERATION
The sum of all the forces acting on an object
Net Force
A 10kg weight is being accelerated with 5N of force. What is the acceleration of the weight?
0.5 m/s^2
The support force exerted upon an object that is in contact with another stable object
Normal Force
Velocity =
[Distance divided by Time] + Direction
mph North
VELOCITY
An object's resistance to a change in motion (Things like to keep doing what they're doing)
Inertia
What cell organelle is responsible for conducting photosynthesis?
Chloroplast
Which of the following is a force and why: weight or mass?
Weight (gravity)