Calculating Speed
What is the equation we use to calculate speed?
speed= distance/time
How do you measure distance?
Distance=speed x time
Newton's _____ law states: An object at rest will remain at rest, and a moving object will remain at a constant velocity unless unbalanced forces act on it.
First
Whenever an object is_____ it has momentum
moving
because momentum (p)=mass x velocity
True or False: Newton's Laws of Motion do not apply in outer space.
False
List 3 units of distance
Answers may vary..
meters, miles, km, inches, cm, yards, feet, millimeter etc.
On a graph, how many titles do you need to have?
1, 2 or 3?
3!!
Y axis, X axis and main title
Newton's ____ law is best stated using the equation: Force=mass X acceleration
second
True or False: Gravity is dependent on the mass of an object
True
In the equation F=MA
What does the F stand for?
Force
List 3 units of time
Answers may vary...
Seconds, minutes, hours, days, milliseconds
Does distance or time go on the X axis?
Time
What is Newton's Third Law?
For every action, there is an equal and opposite reaction.
True or False: Gravity is the strongest force in nature
False
It's actually the nuclear force found in the nucleus of atoms that hold protons and neutrons together
What has more inertia a bowling ball or tennis ball?
Bowling ball
because it has more mass
If Tom runs 800 meters in 100 seconds what is his speed?
*Must have units*
8 meters/1 second
Does Distance or Time go on the Y axis?
distance
Who is given credit for discovering the Laws of motion and Universal Gravitation?
Sir Isaac Newton
The strength of the gravitational force on an object is based on the mass and distance between two objects. The sun is 109 times larger than Earth.
Which object has a stronger gravitational pull on ourselves?
a. The Sun
b. Earth
c. The Moon
b. Earth
Because it is the closest to ourselves despite it being smaller than the sun
What is the equation to measure force?
Force=mass x acceleration
or
F=ma
What is Ms. Brown's speed if she drove 50 miles in 0.5 hours?
Will take either answer:
100 miles/ 1 hour
or
1.67 miles/1 minute
What ALWAYS goes into the axis titles on a graph?
Hint: starts with a "U"
Units
the tendency of objects to remain in motion or stay at rest is called......
Inertia
(newton's first law is basically describing inertia)
Momentum depends on how fast something is moving and how much it___
Weighs
because momentum (p)= mass x velocity
In a rocket, the momentum of the hot fuel going one way ________the momentum of the rocket going the other.
Equals