Newton's Laws
Formulas & Calculations
Simple Machines
Vocabulary
Miscellaneous
100
Another name for Newton's 1st law of motion.
What is the law of inertia?
100
W = F x D
Amount of work an elephant does while moving a circus wagon 20 meters with a pulling force of 200N (answer must have correct units).
What is 4,000 J?
100
Identify this simple machine.
What is a pulley?
100
The distance an object moves divided by the time it takes to move that distance.
What is speed?
100
The correct unit of measurement for power.
What are watts (W)?
200
This law states that objects in motion will stay in motion, and objects at rest will stay at rest unless acted upon by outside forces.
What is Newton's first law of motion?
200
S = D / t
The speed of a car that travels 150 meters in 10 seconds (answer must include correct units).
What is 1.5 m/s?
200
Identify the simple machine shown here. 
What is a lever?
200
One has direction, the other does not.
What is the difference between speed and velocity?
200
A force that opposes relative motion between two surfaces
What is friction?
300
A swimmer pushes off of a pool wall to propel themselves forward. This is best explained by...
What is Newton's 3rd law of motion?
300
Acceleration = vf - v0 / t
A skateboarder goes from resting to 4.0 m/s in 2 s. Calculate the acceleration (answer must include the correct units).
What is 2.0 m/s2?
300
This simple machine increases distance over which force is applied, making work easier.
What is an inclined plane?
300
The combination of all forces acting on an object.
What is net force?
300
Calculate the net force and direction this object will move. 
What is 3 N, left?
400
A 9 kg bowling ball rolls down the bowling lane at a greater acceleration than a 6 kg bowling ball. This is best explained by...
What is Newton's 2nd law of motion?
400
F = m x a
An object with a mass of 5 kg experiences a net force of 20 N. Calculate its acceleration (answer must be in correct units).
What is 4 m/s2?
400
Identify the type of lever shown here. 
What is a 2nd class lever?
400
When all forces acting on an object equal a net force of zero, the forces are considered to be _____.
What is balanced?
400
Identify whether or not this object is moving at a constant speed based on the graph. 
What is the object is moving at a constant speed?
500
Two hockey players collide and experience an equal force of 400 N - one has a mass of 88 kg and the other has a mass of 102 kg. According to Newton's laws of motion, the player with greater acceleration would be...
Who is the 88 kg player?
500
output force / input force x 100
A machine does 2.0 J of work while consuming 2.5 J of input energy. Calculate its mechanical efficiency (answer must have correct units).
What is 80%?
500
Mechanical advantage is...
What is the help a machine provides to make a task easier?
500
A percentage of how well a machine uses the energy given to do a job.
What is mechanical efficiency?
500
Based on this graph, identify the rate of acceleration for this object (answer must be in correct units). 
What is -10 m/s2 (object is decelerating)?