Definitions
Calculations
Formulas
Conservation
Fun!
100
A measure of an objects motion and how likely the object will stay in motion
What is momentum?
100
an 18,000kg transport truck is travelling east at 80km/h. Calculate the momentum of the truck.
p = 400,000kg*m/s
100
What is the formula for momentum?
momentum = mass x velocity
100
This law states total momentum before and after a collision remains the same in a closed system
What is the law of conservation of energy?
100
A change in momentum is called this.
What is impulse?
200
A push or pull on an object
What is a force?
200
A soccer player kicks a ball with a force of 60kg*m/s2 for 3 seconds. The impulse on the ball is this.
Impulse = 180 kg*m/s
200
What is the formula for impulse?
Impulse = force x time
200
If the total momentum before the collision is 1234kg*m/s, what is the total momentum after the collision?
1234kg*m/s
200
Two identical cars collide at the same velocity. Car 1 has its mass doubled and collides again. What happens to Car 1's momentum in the second trial compared to the first?
Car 1's momentum is doubled
300
Brakes work by using __________
What is friction?
300
Before the collision, Car 1 has a mass of 12kg and a velocity of 24m/s, and car 2 has a mass of 15kg and a velocity of 3m/s. What is their total momentum before they collide?
p = 333kg*m/s
300
What is the formula for force?
mass x change in velocity
_____________________
time
300
If two identical carts moving toward each other at equal speeds collide, the total momentum of the system is this
What is zero?
300
What is Ms. MacKenzie's favourite color?
Green!
400
The combination of size of the size of the force and time during which the force acts is called _________
What is impulse?
400
If a 1200 car increases its velocity by 20km/h, what is its momentum?
p = 24000kg*km/h
400
What is the formula for conservation of momentum?
total momentum before = total momentum after
400
If the stopping time of a collision increases but impulse stays the same, the force will do this.
What is decrease?
400
What direction will the objects move after the collision?
To the right (+)
500
A truck moving slowly can still have large momentum because it has a very large ________
What is mass?
500
A 2kg ball speeds up from 3 m/s to 9m/s in 3 seconds. The force applied to the ball is this.
Force = 4kg*m/s2
500
Force is written using these units
What is kg x m/s2?
500
Catching a baseball by moving your glove backward reduces injury because it increases this.
What is stopping time?
500
A test vehicle originally has mass m and speed v. In a second test, its mass doubles and its velocity doubles. How does the vehicle's momentum change?
It quadruples or is four times greater.