Definitions
This quantity has both magnitude and direction.
What is a vector?
The unit for force.
Newtons
Three meters per second to the left is a measure of .....
What is velocity?
On Saturn, your weight would ...
What is increase?
Action/reaction pairs are a part of this Newton Law.
What is Newton's 3rd Law?
An object has this when it has changing velocity.
What is acceleration?
Use this equation when solving for acceleration.
a = (v-v0)/t
An object starts at 7m and travels 12 m South. What was the object's displacement?
-5 m or 5 m South
"Every object retains its state of rest or state of uniform straight-line motion unless acted on by an unbalanced force"
Newton's First Law or Law of Inertia
What is gravity?
This quantity is only dependent on mass.
What is inertia?
The force of gravity on the object and may be defined as the mass times the acceleration of gravity.
What is weight?
What two quantities do you need to have in order to solve for average speed?
What are distance and time?
This force is caused by two surfaces sliding or rubbing.
What is friction?
A ______ is an idea that proposes a tentative explanation about a phenomenon observed in the natural world.
What is a hypothesis?
This state of motion is characterized by zero acceleration.
What is equilibrium?
The equation for net force
What is Fnet = ma
An object starting at rest accelerates to a velocity of 90 m/s in 5 seconds. Determine the object's acceleration.
18 m/s2
This scientific "principle" states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. OR Fnet = ma
Newton's 2nd Law
The independent variable goes on this axis.
What is the x-axis?
The vector sum of two or more vectors.
What is the resultant?
The unit Newtons in SI base units.
1 N = 1kgm/s2
Find the average velocity of an object that moves 120 meters South in 23.6 seconds.
-5.08 m/s2 or 5.08 m/s2 South
An object (m = 45 kg) is pushed with a force of 65.7 N to the right and a force of 120.3 N to the left. Determine the acceleration of the object.
-1.21 m/s2
This scientist is credited with first determining the acceleration due to gravity.
Who is Galileo?