Definitions
Motion Graphs
Free-Body Diagrams
Newton's Laws (1+2)
Kinematics
100
This force is ALWAYS present, and is equal to the mass of an object multiplied by 10
What is gravity (weight)?
100
The slope of a displacement vs. time graph represents this vector quantity
What is velocity?
100
Draw an FBD for the following situtation (include labels & numbers):
A 75 kg skydiver is falling at a constant speed towards the Earth.
(Teacher drawn on board)
100
Newton's 2nd Law in equation form
What is F=ma?
100
A 1 kg ball is rolling at a constant velocity of 2 m/s. What is the ball's acceleration?
What is a= 0 m/s2 ?
200
A scalar quantity that is the result of distance divided by time
What is speed?
200
What is the acceleration of the object shown in the graph?
A=0 because v=0
200
A person riding a hovercraft at a constant speed experiences a net force and acceleration equal to this number.
Fnet = 0 N
a= 0 m/s2
200
A 3.6 kg bowling ball is thrown with a net force of 14 N. What is the acceleration of the ball?
What is a= 3.88 m/s2 ?
200
All 3 paths must be completed in the same amount of time. Identify the path that requires the greatest speed to get from point A to point B.
What is Path 1?
300
A vector quantity that is equal to the change in velocity over time
What is acceleration?
300
Calculate the acceleration of the object between 0-10 s.
a= 2 m/s2
300
Identify why the FBD does not match the statement below (2 reasons)
Timmy & Tommy are playing tug-of-war, each pulling with a force of 65 N.
1) Gravity force is missing
2) The arrows are not equal in size
300
Kyrie Irving dribbles a basketball.
List all of the forces acting on the ball when it rebounds (bounces) off of the floor.
What are gravity & air resistance?
300
A horse galloping at 15 m/s increases his speed to 17 m/s over 4 s. Find the magnitude of the horse's acceleration.
What is a = 0.5 m/s2 ?
400
Object's in motion stay in motion and objects at rest stay at rest unless acted upon by an unbalanced force
What is Newton's 1st Law?
400
An object thrown into the air accelerates back down to Earth in free fall. It accelerates at a constant rate of 10 m/s.
Sketch the overall shape of the distance-time graph.
400
Find the magnitude of the missing forces given the following information:
Fnet= 965 N right Ftension= 1,200 N m= 355 kg
What is:
Ffriction= 235 N left
Fnormal = Fgravity= 3,550 N
400
Find the mass and acceleration of the object shown below.
What is
m= 10 kg
a= 3 m/s2 down
400
An apple that was initially at rest is falling from a tree. It takes 1 s for the apple to reach the ground. Calculate the apple's final velocity just before it hits the ground.
What is a= 10 m/s2 down?
500
An object's tendency to resist change in motion
What is inertia?
500
Sketch the general shape of a distance-time graph AND velocity-time graph that match the following statement:
Mr. Dembrow is riding the hovercraft. He starts from rest, accelerates away at a constant rate, then pushes the hovercraft forward at a constant speed.
500
Find the net force, acceleration, and mass of the object shown.
What is
Fnet = 50 N right
a = 0.5 m/s2 right
m = 100 kg
500
A 2,500 kg boulder and a 2.5. kg rock are sitting on the edge of a cliff. A 3,500 N force is applied to each. Why does the rock move, but the boulder doesn't?
The boulder has more mass, which means it has more inertia, which means it requires a greater force to change its motion (from Newton's 1st Law).
500
Kevin Garnet is racing Ray Allen to the end of the court. They begin by jogging at 2 m/s when KG accelerates at a constant rate of 2.5 m/s2 for 1.4 s.
How far did KG run in that time?
What is KG's final speed?
What is
vf= 5.5 m/s
/_\x = 5.25 m