Dropped two cannon balls from the Leaning Tower of Pisa in Italy
Who is Galilei
100
The speed of an object in a particular direction
What is velocity
100
Two forces that are equal in size and opposite in direction
What is Balanced Force
100
Acceleration due to gravity
What is 9.8 m/s/s
100
After releasing a ball, the motion the ball initially travels
What is Horizontal Motion
200
Changed people's understanding of Gravity and Falling Objects
Who is Galilei Galileo
200
The rate at which velocity changes over time
What is acceleration
200
The combination of all the forces acting on an object
What is Net Force
200
v= g x t
What is the equation for change in velocity
200
Gravity causes this motion
What is Vertical Motion
300
Created Three laws of Motion
Who is Isaac Newton
300
Force caused by objects rubbing together that makes them slow down or stop
What is friction
300
The unbalanced force that causes objects to move in a circular path
What is Centripetal Force
300
0 N
What is net force
300
The curved path that an object follows when thrown, launched, or otherwise projected near the surface of Earth
What is Projectile Motion
400
First African American female to orbit Earth
Who is Mae Jemison
400
The curved path of a celestial object or spacecraft
What is orbit
400
A measure of gravitational force
What is weight
400
Every second an object falls, the objects downward velocity increases by
What is 9.8 m/s/s
400
The moon stays in orbit around the Earth due to
What is Gravity
500
Invented bifocals
Who is Benjamin Franklin
500
The force that opposes a motion of objects through air
What is Air Resistance
500
A force that is not opposed by and an equal and opposite force operating directly against the force intended to cause a change in the objects state of motion or rest
What is Unbalance Force
500
A marble at rest is dropped from a tall building. The marble hits the ground with a velocity of 98 m/s. How long was the marble in the air?