Show:
Position vs. time
Velocity vs. time
Newton's laws
ULoG
Kinematics
100

a horizontal line means...

the object is at rest

100

a horizontal line means...

the object has a constant velocity

100

Newton's Law is the law of ____, which has to do with an objects... ___________.

inertia; mass

100

What number is always included when finding the gravitational force between two objects?

G = 6.67 x 10^-11

100
If an object is in free-fall, what things are true?

initial velocity is 0 m/s

acceleration is -9.8 m/s^2

200

a non-zero slope means...

the object has a constant velocity

200

a non-zero slope means...

the object has a constant acceleration

200

Newton's 2nd law is...

F = m x a

200

If one mass were to increase, then the force would...

increase

200

if you are given the initial velocity, the distance, the acceleration, and you're trying to find final velocity, which equation would you use?

timeless

300

a negative slope means

the object is moving at a constant velocity in the negative direction

300
you know that an object is at rest when the graph...

crosses the x-axis

300

Newton's 3rd law is known as the law of...

opposite forces

300

In the ULoG equation, distance is always

squared

300

If you are given the time, acceleration, initial velocity, and you're asked to find distance, which equation would you use?

no final velocity

400

If there is a curve in a position vs. time graph, then the object is

accelerating

400
describe the motion of an object whose v-t graph starts below zero, has a positive slope crossing the x-axis and continues above zero

traveling in the negative direction, slows down and stops, then speeds up in the positive direction

400

How would you find the acceleration of an object?

find the net force, then divide by the object's mass

400

If the distance between two object's doubles, how would that affect the force?

it would decrease by 1/4

400

If you're given the initial velocity, the final velocity, and the time, how would you find acceleration?

vf-vi/t = a

500

how would you find the velocity of an object in a position vs time graph?

find the slope

500

how could you tell what the acceleration of an object is...

find the slope
500

If there is no net force on an object, will it move? Explain.

If it is at rest, no, it will not move. If it is in motion, it will keep moving at a constant speed. The object just won't accelerate.

500

What celestial body has the greatest affect on Earth? The Moon or the Sun? Why?

The moon because it is closer.

500

If you had a changing velocity, could you use kinematics equations

no; they only deal with a constant acceleration