Measuring Motion
Gravity and Friction
Deformation Lab
Speed and Mass Lab
Some more vocabulary
100
The distance an object covers in a certain amount of time.
Speed
100
The force that slows down moving objects.
Friction
100
To change the shape of an object by adding force.
Deformation
100
State the relationship between speed and peak force.
As speed increases peak force increases.
100
The sun has the most in the solar system because of its mass
gravity
200
A change in speed or direction.
Acceleration
200
All objects with mass have ___________
Gravity
200
State the relationship that we discovered during the deformation lab.
As the force on an object increases the deformation of the object also increases.
200
During the mass and peak force lab, when did the carts have the lowest peak force?
No washers. Lowest mass.
200
Something we measure, observe or change during an investigation.
Factor/variable
300
An objects speed in a certain direction.
Velocity
300
A moving object on wheels is an example of _______________ friction.
Rolling
300
The dependent variable in the lab was...
Total deformation of the stir sticks.
300
Name two variables that were kept constant during either the mass or speed lab.
-Length of incline
-Push on cart
-How the push scale was read
300
Measured in Newtons. A push or pull
Force
400
Calculate this by multiplying an objects mass by its velocity.
Momentum
400
The scientist that stated the universal law of gravity.
Newton
400
The independent variable was...
The amount of force.
400
What were the independent variables in the mass and speed labs?
Peak force
400
The energy of motion
Kinetic energy
500
If you graph the speed of an object, and get a straight line, the object is traveling at a ________ speed.
Constant
500
An object that can't be moved has a great amount of ______________ friction.
Static
500
How do we know that the relationship between force and deformation is linear?
The graph was a straight line.
500
Think about the relationships between peak force and speed, and peak force and mass.
When would you rather be hit with a baseball?
When would you rather be hit with a bowling ball?
You'd rather be hit with a baseball when both balls are traveling at a high speed because the baseball has less mass.
You'd rather be hit with a bowling ball at a low speed than a baseball at a higher speed.
500
A straight line on a graph
Linear relationship