Unit 1
The unit that measures distance
Meters
Unit velocity is measured in
Meters per second
Unit acceleration is measured in
Meters per second
Will two objects hit the ground at the same time even if they are launched at different speeds?
Yes
Unit forces are measured in
Newtons
The unit that measures mass
Kilogram
What is velocity: Vector or Scalar?
Vector
What a horizontal line on a velocity-time graph means
Consistant velocity
Only force on an object when falling
Gravity
What is inertia?
An object's resistance to changes in motion
1000m in km
1 km
A vector has both ___ and ____.
Magnitude and direction
If you travel 10m/s for 2.5s, what is the acceleration?
0 m/s^2
Gravity accelerates at a rate of ___.
9.8 m/s/s
Which does NOT depend on gravity: Mass or weight?
Mass
2 mg in g
0.002g
If you travel 4m in 2s, what is your velocity?
2 m/s
Definition of acceleration
rate at which velocity changes with time, in terms of both speed and direction.
Does vertical velocity change as an object falls?
Yes
What is net force?
Total force after opposites cancel out
What KHDUDCM stands for
Kilo hecto deca unit deci centi milli
What does a horizontal line of a distance vs time graph mean?
Stopped
How to calculate acceleration
Change in velocity over time
Does horizontal velocity change as an object falls?
No
What is centripetal acceleration?
Acceleration inward of an object in uniform circular motion