Physics of Motion
The unit for velocity
Meters per second M/S
The unit for force
What is a Newton
N
If Jack walks 8 blocks north and 5 blocks west, how far did Jack walk?
13 blocks
This person discovered the idea of Gravity
Isaac Newton. Founder of Newton's Laws
This is the formula for SPEED
Distance = Velocity / Time
What is "g"?
Acceleration due to gravity in formulas
9.81 m/s2
What is torque?
A turning effect of a force
If Jack walks 13 Blocks North and 5 Blocks South what is his Displacement?
8 Blocks North
Newton’s First Law is also known as:
The Law of Inertia
If an object is at rest, what is its velocity?
0 m/s
What is the formula for torque?
Torque = Force x Lever Arm (radius)
The difference between Speed and velocity
What is a direction / vector ?
Newton's Second Law states
Force is equal to Mass times the Acceleration
F = M x A
A car drives 35 meters in 4 seconds. What is the car's velocity?
8.75 m/s
A hammer and a feather are dropped at the same time on the moon. They both reach the ground at the same time. Why?
There is no air, so all objects will fall at the same rate
A 10 N force is applied 2 m from a pivot. What is the torque?
20 N/m
If Berkley is driving his golf cart at 10m/s and comes to a complete stop in 4 seconds, what is his acceleration?
-2.5 m/s^2
Newton's Third Law states
The distance a car travelled if it drove at 40 m/s for 30 minutes
What is 72 km?
D = v*t = 40 m/s * 1800 s
D= 72,000 m = 72 km
If a tennis ball was dropped off the top of a building and hits the ground in 3.2 seconds, How fast will it be traveling when it hits the ground?
31.4 m/s
A force of 15 N is applied perpendicular to a 0.5 m lever arm. What is the torque?
7.5 N/m
A wave has a wavelength of 5 meters, a frequency of 76 Hrtz, and an amplitude of 4 meters. How tall is the wave?
4 meters tall
Amplitude = Height
Frequency = Speed
Wavelength = distance between waves
A 10 kg object accelerates at 2 m/s². What is the force?
20 N