Basic Stuff
How do you spell the subject you are in right now?
Physics
What is the defintion of net force?
The sum of all forces acting on object combined.
Why is distance a scalar quantity?
It provides magnitude or size but no direction
True or false. Velocity and acceleration are both examples of vectors?
True
What is the equation for Newton's Second Law of Motion? What do each of the letters stand for?
DAILY DOUBLE
F= m x a
F= Force
M=Mass
A=Acceleration
What is the title of this unit?
Unit 1: Motion
DRAW a free body diagram of a box being pushed to the left with a force of 35 N and to the right with a force of 15 N. What is the total direction of net force and are the forces balanced or unbalanced?
DAILY DOUBLE
20 N Left
Unbalanced
Why is displacement an example of a vector quantity?
It's a quantity that provides both size and direction
What is the difference between average velocity and instantaneous velocity?
DAILY DOUBLE
Average: It gives the overall rate of motion over a time interval, without showing what happened at each instant.
Instantaneous: Velocity at a specific moment in time
What is the unit for force and what variable do we use?
Newtons (N)
If I am driving 20 mph and I pass a car going 20 mph in the opposite direction how fast would the car look like its going based off frame of reference?
40 mph
If Mr. Soriano pushes a box to the left with a force of 50 N and someone else pushes the same box in the same direction with 20 N what is the total direction of net force? Are they balanced or unbalanced?
70 N Left
Unbalanced
What is a change in position in the frame of reference that describes the distance and direction of an object's final position from its initial position?
Displacement
An airplanes velocity at take off is an example of average or instantaneous velocity?
Instantaneous
If we apply the same force to 2 objects with different masses what will happen to the object with less mass? What will happen to the object with more mass?
Less mass=More Acceleration
More mass= Less Acceleration
What was the unit before this unit called?
Engineering Design Process
2 teams are playing tug of war and both are pulling with 80 N of force in the opposite direction what is their net force? Are theforces balanced or unbalanced?
0 N
Balanced
I travel 6 meters East then, travel 7 meters West, then go back 5 meters East. What is my distance & displacement?
distance: 18 meters
displacement: 4 meters East
What is the equation for velocity and what unit do we use?
v= d / t
meters per second (m/s)
A box with a mass of 200 kg is pushed with a force of 1,000 N. What is the acceleration of the box?
a= F / m
a= 1000/200
a= 5 m/s/s or m/s^2
What is the difference between unbalanced and balanced forces?
Unbalanced forces: When forces are not equal in size or not directly opposite. There is a net force that isn't zero.
Balanced forces: When 2 or more forces are equal in size but opposite in direction. Net force is zero.
I travel 12 meters North, then 10 meters South, then go back up 15 meters North. What is my distance & what is my displacement?
distance: 37 meters
displacement: 17 meters North
What is the equation for acceleration? And what is the unit for acceleration?
a= v(f)-v(i) / t(f)- t(i)
Meters per second squared (m/s^2)
Give me a real world example of second law at work when applying force to 2 objects?
Up to Mr. Soriano