Intro To Physics
How many steps are in design thinking?
5
What is 1D Motion?
Movement along a straight line
What is kinematics?
What is force?
An action that can change motion
What does Newton's First law state?
An object at rest stays at rest and an object in motion stays in motion in the same speed/direction unless acted upon by an unbalanced force
What are the steps in design thinking?
Empathize, define, ideate, prototype, test
What are the units for acceleration?
m/s/s
A car starts from rest and accelerates over a time of 5.21 seconds for a distance of 110m. Determine the acceleration of the car.
a = 8.10 m/s/s
What are the units for mass and weight?
Acceleration of an object is directly proportional to the magnitude of the net force, same direction of the net force, and proportional to the mass of the object
A triangle
What is velocity?
Speed with direction
Define displacement
The shortest distance between two points with direction
What is friction?
What does Newton's third law state?
For every action force there has to be a reaction force that is equal in strength and opposite in direction
What are two SI units?
Meter (m) Seconds (s) Kilogram (kg)
What is a dt graph?
A distance time graph
A race care accelerates from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car and the distance traveled.
a = 11.2 m/s/s and d = 79.8 m
What formula is used to find weight?
W=mg g=9.8
First law of motion is also known as?
Law of inertia
How would you write 10^9 in scientific notation?
1,000,000,000
How is acceleration shown on a dt graph?
In the Olympics, a sprinter ran the 100-meter dash in 9.69 seconds. Determine his average speed for the race.
10.3 m/s
What is density?
An upward force exerted by a fluid that opposes the weight of an object
What causes the motion of a body which is initially in the state of rest
Force