motion
a change in position of an object
What is motion?
force can make objects__________ or ________
What is move or stop?
the rate at which an object changes position is
What is speed?
mass is the measure of _____________
how much matter is in an object
If an object has negative acceleration, what is doing?
Slowing down.
A change in an object's speed or direction.
Acceleration
The net force acting on an object at rest.
Zero
a student wants to know the velocity of the car, what two things does she need to know?
speed and direction
weight is the measure of
how strong the gravitational pull is on the object
if you are looking at a moving waterfall, the trees surrounding the waterfall would be its _________ of ___________
What is frame of reference?
a push or pull?
What is force?
a force that is the same on both directions is a ________________ force
What is balanced?
Mrs. Murphy drives to a place this weekend that took her 4 hours to get there. On the map it shows it was 280 miles. what was Mrs. Murphy's speed?
70 mph
if two students push a box of the same mass for 10 seconds, which student pushed it further?
the one who pushed with the most force
if Earth had a lot less mass, how would that affect its gravity?.
the force of gravity would be a lot less
when two objects have a pull toward each other?
What is gravity?
Your weight on the moon would be this fraction of your weight on Earth.
1/6th
a train is moving in the same direction at the same speed, does it have acceleration?
no, it has to change direction or speed to have acceleration
the force of gravity would be strongest on the object with the most ___________
mass
DAILY DOUBLE
if an object is moving at a speed of 5150 mph, and it travels a distance of 2200 miles, how long would it take to get there?
What is 4 hours?
a measure of how fast an object is moving
Speed
which object would require the least amount of force to move: bowling ball, table tennis ball, soccer ball or golf ball?
table tennis ball
to calculate speed, you have to divide the __________ by the _________
distance by time
if you are moving a heavy box across the room, why would it be easier if a friend helps?
the combined force of you and your friend make it easier to move the box than if you did it alone
how does friction affect motion?
friction slows down motion