Vocabulary
measure of the amount of matter in an object
What is mass?
measure of gravitational force exerted on an object
What is weight?
formula for finding distance
What is d=rt?
formulated the Law of Universal Gravitation
Who is Sir Isaac Newton?
the combination of all the forces acting on an object
What is net force?
a push or pull exerted on an object to change the motion of the object
What is force?
the SI (scientific international) unit for force
What is Newton?
formula for finding acceleration
What is final velocity minus starting velocity divided by time of acceleration?
All objects in the universe...
What is attract each other through gravitational force?
A bus is travelling north at 12m/s. You walk to the front of the bus at 1m/s. Your velocity is...
What is 13m/s north?
an object’s change in position relative to a reference point
What is motion?
a force of attraction between objects that is due to their masses
What is gravity?
A cheetah runs 190m to the east in 2 seconds. What is his average speed?
What is 95m/s?
As mass increases, gravitational force
What is increases?
A plane is travelling south at 250m/s. You walk to the back of the plane at 2m/s. Your velocity is...
What is 248m/s south?
a force that opposes motion between two surfaces that are in contact
What is friction?
the distance traveled divided by the time interval during which the motion occurred
What is speed?
A sasquatch lumbers 30m to the east in 2 seconds. What is his average velocity?
What is 15 m/s east?
As distance increases, gravitational force
What is decreases?
You are pushing a heavy box to the left with 5N of force. Your friend helps you push the box left with 7N of force. The net force is ___ to the ___.
What is 12N to the left?
the speed of an object in a particular direction
What is velocity?
the rate at which velocity changes over time
What is acceleration?
A car passes point A at a velocity of 75m/s south. Thirty seconds later, it passes over point B at a velocity of 135m/s south. What is the plane’s average acceleration?
What is 2m/s/s?
forces acting on the egg car in the Friction 500
What are gravity and friction?
The bully across the street walks up and pulls on the basketball you are holding with 9N of force. You pull in the opposite direction with 9.5N of force. ___ loses the ball.
What is the bully?
(Yea for the good guy!!!)