Motion
What is the Frame Of Reference
What stays still in order to observe an object move
What is a Force?
A push or pull one body exerts on another
What is work
The product of force and distance
What is Newton's 1st Law of Motion
An object in motion stays in motion, an object at rest stays at rest until acted upon by an unbalanced net force
A Black Friday shopper was running towards a rack of toys on sale that were a distance of 20 meters West. If it took her 6.8 seconds to reach the toys, what was her velocity?
2.94 m/s West
What are the three types of speed
Average, Constant, Instantaneous
What is the unit for force?
Newtons (N)
What is Power
The rate of doing work
What is Newton's 2nd Law of Motion
he force acting on an object is equal to the mass times the acceleration caused by the force
A car is moving forward with a force of 3225 N. If the car has an acceleration of 2.1 m/s2, what is the mass
1535.71 kg
What is the definition of speed
The rate of change in position
What is the acceleration due to gravity
9.8 m/s2
A weightlifter lifts a barbell using 1600 N of force for a distance of 200 cm. What was the work done on the barbell?
3200 Joules
What is Newton's 3rd law of Motion
For every force there is an opposite force
A deer runs through a field with a speed of 15 m/s. If the giraffe runs for 20 seconds, how far did it run?
300m
What are 3 different ways to accelerate?
speed, direction, speed & direction.
A mouse nudges a chunk of cheese with a force of 2 N. If the cheese has a mass of 0.67 lbs, what is the acceleration of the cheese chunk?
6.67 m/s2
A 0.005 kg marble is dropped from the edge of a lab table. If the lab table is 0.88 meters high, what is the work done on the marble?
0.04J
What Law of Motion is shown here:
A soccer ball staying a rest until kicked by a player.
1st Law of Motion
A car’s velocity increases from 0 m/s to 30 m/s in 10 s. What is the car’s acceleration during this time interval?
3m/s2
A car’s velocity increases from 0 m/s to 30 m/s in 10 s. What is the car’s acceleration during this time interval?
3 m/s2
A bottle of milk is pushed across a table with an acceleration of 25 cm/s2. If the milk has a mass of 2.2 kg, what is the force applied to the milk?
0.55 N
A gymnast does 75 J of work to lift her gym bag up above the lockers. If it takes her 1.6 seconds to do this, what is the power it required?
46.875 Watts
What Law of motion is shown here
When a gun fires, the bullet moves forward, and the gun recoils backward
3rd Law of Motion
A 3 kg hockey puck is at rest on the ice until it is struck by a player. If the puck moves a distance of 30 m in 5 seconds before it strikes the goal post, what force does it hit the goal post with?
0.01 m/s2