Vectors and scalars
What is a scalar?
A scalar is a measurement with magnitude only
What is a force?
A force is a push or pull on an object
What are the kinematic equations used for?
Problems related to motion
How many meters are in 10 kilometers
10,000 meters
What is a vector?
A measurement with magnitude and direction
Velocity and acceleration are both forces?
False only acceleration is a force
Which kinematic equation cannot solve for time?
Equation 4: V2 = Vo2 + 2a(delta)X
How many hours are in 3 days?
1 day = 24 hours
72 hours
What is the difference between displacement and distance?
Distance is the total path length, displacement is distance between where you started and finished
What is the difference between a diagram and free body diagram?
A free body diagram only depicts forces acting on the object, a diagram depicts how we would see the motion.
Equation 2: (delta)x = ((v+vf)/2) t
How many seconds are in 1 day?
1 day = 24 hours
1 hour = 60 mins
1 min = 60 secs
86,400 seconds
A track runner completes the 1600 m race in 5 mins flat. What is their distance and displacement?
Distance: 1600 m ; Displacement: 0m
If a ball is thrown horizontally 10m above the ground it will hit the ground first compared to a ball dropped from 10m above the ground? True or false
False, they will hit the ground at the same time because gravity will pull them down equally and they are dropped from the same height
Which kinematic equation cannot solve for displacement?
Equation 1: v = vo + at
How many inches are in 1 mile?
1 mile = 5280 ft
1 foot = 12 inches
63,360 inches
You travel 30 meters east then 40 meters north. What is your total distance and displacement?
Displacement: 50 meters northeast
The acceleration of an object due to gravity is? (Units too)
9.8 m/s2
Which equation cannot solve for final velocity?
Equation 3: (delta)x = vot + 1/2at2
If you are traveling 18 km/hr how fast are you traveling in m/s?
5 m/s