Distance and Displacement
If a lizard runs up a tree 10 meters than runs back down two meters what was its total distance and displacement?
12 meters; 8 meters
What is the difference between speed and velocity?
Velocity includes direction and is a vector, while speed is a scalar quantity.
What is acceleration?
Change in speed over time
Before and after a collision, momentum is the same? less? greater?
the same
A property of matter that states an object will stay in motion or stay at rest unless a force acts upon it
Inertia
A man walks 5 meters Norths, then back 7 meters south. What was his total distance? What was his displacement?
12 meters, -2 meters
What is the speed of an object moving 20 meters in 10 seconds?
2 m/s
What is the acceleration of an object that goes from 0 to 100 miler per hour in 4 seconds?
25 m/s^2
What will have a greater momentum? A tug boat or a cruise ship going to same speed?
The ship
An objects final position from its initial position
displacement
A baby crawls 3 meters to the right, 5 meters forward, then 2 meters to the left. What is the baby's total distance?
10 meters
If a train is moving at 200 miles per hour for 3 hours, how far will it have traveled?
600 miles
What is the acceleration of an object in free fall?
9.8 m/s^2
What is the momentum of an object whose mass is 200 kg moving at 20 m/s?
400 kg m/s
change in velocity over time
acceleration
A bird flies 20 meters NE the back 5 meters SW, What is the bird's displacement?
15 meters NE
How long will it take a beetle to travel 5 meters across the floor if it is traveling at 1 m/s
5 s
True or false, an object that changes direction moving at a constant speed is accelerating.
True
What is the mass of an object that is moving at 60 m/s and has a momentum of 120 kg m/s?
2 Kg
amount of space an object takes up, measured in Kg on earth.
mass
A train goes 250 miles west, then back 30 miles east. What was its total distance? What was its displacement?
280 meters, 220 meters W
You need to get to class 200 meters away but can only walk the halls a 1.5 m/s. How long will it take you to get to class? (convert to minutes)
2 minutes and 22 s
If an object is accelerating at 20 m/s^2 and has an initial velocity of 60 m/s in 300 seconds, what was the objects final velocity?
6060 m/s
What is the speed of an object that has a mass of 40 Kg and has a momentum of 200 Kg m/s?
5 m/s
distance over time with direction
velocity.