Projectile Motion
The Range of Projectiles
PEter & KEith
Conservation of "E"
Grab Bag!
100
An object traveling through the air or other medium...
What is a projectile
100
Projectiles travel in the shape of a parabola and follow a path referred to as this...
What is trajectory
100
This is referred to as "stored work"...
What is energy
100
This is conserved when there are no outside forces acting on the objects under consideration...
What is energy
100
The man who came up with the three laws of motion...
Who is Sir Isaac Newton
200
The only type of force acting on an object in free fall...
What is gravity
200
This number describes the acceleration of an object due to gravity for an object in free fall to planet Earth...
What is -9.8 m/s^2
200
This law states that energy can neither be created nor destroyed...
What is the Law of Conservation of Energy
200
The type of energy present when a jumper squats down...
What is elastic potential energy
200
This letter represents the spring constant...
What is "k"
300
The two types (directions) of motion that are independent of one another when an object is in free fall...
What are horizontal and vertical motion
300
This number is the angle at which a launched projectile will travel the farthest...
What is 45 degrees
300
These are the four types of energy...
What are work, elastic potential energy, gravitational potential energy, and kinetic energy
300
These types of energy are present when a person is in between squatting and heading toward the peak...
What are gravitational potential and kinetic energy
300
This is the force of attraction between two bodies due to their masses...
What is gravity
400
For an object in free fall, this remains constant in the horizontal direction, but changes at a rate of -9.8 in the vertical direction...
What is velocity
400
These are the two types of models used by scientists to explain a certain event in science...
What are mathematical and physical
400
The equation for work and what the variables stand for...
What is W=Fxd where F is force and d is distance/displacement
400
These are the three positions of the jumper and the types of energy that are present at each position...
What are ready (EPE), launch (KE and GPE), and peak (GPE)
400
This law states that the acceleration of an object is directly proportional to its force and inversely proportional to its mass...
What is Newton's Second Law of Motion
500
These three factors determine the range of a projectile...
What are are initial velocity, the angle, and the height
500
Increasing this will decrease the range of a projectile...
What is the angle
500
The standard unit for energy...
What is the Joule
500
This is the amount of kinetic energy present if the total energy of the system is 200 J, the gravitational potential energy is 60 J, and the elastic potential energy is 40 J...
What is 100 J
500
Name one real-world example of a projectile...
What is (answers will vary)
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