Units
Velocity is measured in _________
Meters/second (m/s)
The equation for ______ is
m*v
Momentum
"Inertia in motion" is known as _________
Momentum
If you double the amount of force used to move an object, the impulse will be _____
Doubled
An object will only change its momentum due to __________
An external force
Force is measured in _______
Newtons (N)
Force x time is equal to ____
Impulse/Change in momentum/mass*change in velocity
A force acting for a period of time is known as ______
Impulse (I)
If two objects have the same amount of mass, then the slower moving object has ____ momentum
Less
Give an example of an object experiencing an impulse
-Bat hitting baseball
-Car hitting a tree
-Object changing speed
Momentum is measured in _______
Kilogram-meters/second
(kg*m/s)
The equation for ______ is 1/2mv2
Kinetic Energy (KE)
In a(n) ____ collision, the objects will stick together and move with the same velocity
Which of the following experiences the greatest impulse?
-Lion resting on a rock
-Antelope seeing a lion and starting to run
-Rhinoceros charging at constant speed
-Elephant drinking from the watering hole
Antelope running from a lion
How does an airbag work to protect you in a car crash? (Be specific!)
Increases time of impact to decrease impact force
Impulse is measured in ______
Newton-second (Ns)
The equation for ______ is
p_i=p_f
Law of Conservation of Momentum
DAILY DOUBLE
Momentum has
-magnitude only -direction only
-magnitude and direction -force and velocity
Magnitude and direction
If the speed of an object is cut in half, how will the momentum change?
Cut in half
Name some of the sources of energy loss associated with an inelastic collision
What units make up a Newton?
kg*m/s^2
What name is associated with this equation?
Impulse = Change in Momentum
Impulse-Momentum Theorem
An elastic collision differs from an inelastic collision because for inelastic collisions, _______ is not conserved
Kinetic Energy
DAILY DOUBLE
Two identical eggs are launched the same speed at a pillow and a car. Which egg experienced a larger change in momentum?
They experience the same change
Momentum has a ____ relationship with mass and a ______ relationship with velocity
Direct, direct
Science and Scientists
Make 2 wagers. The sum of those two cannot exceed your point total
1.How many of the units of measurement that have we talked about this year are named after scientists?
2. What are the names of those scientists?
1. 3
2. Newton, Joule, Watt