Acceleration
How do you find Average Acceleration?
Change of Velocity over time
What type of collision occurs when kicking a soccer ball?
Inelastic collison.
True or false by blocking a ball the player destroys the energy?
False
True or False? An example of projectile motion is when a ball is hit into air reaching it's max height before coming back down
True
What gets transferred to the ball when it is hit?
Momentum
True or False? More force is needed to accelerate a ball if it has less mass?
False
From a physics view, what is the difference between a shot and a pass?
Amount of Force used to strike the ball.
What is Energy?
The ability to do work.
What causes the ball to come back down when struck?
Gravity
True or False? Momentum can be described as mass in motion.
True
Greater GRF results in better acceleration for soccer players, What is GRF?
Ground Reaction Force
When passing the ball on the ground what contact force causes the ball to slow down from the ground?
Friction
A player winding up to hit the ball is an example of what kind of energy?
Potential energy
When kicked into the air when is the velocity of the ball equal to 0
When it is at its peak.
What is Momentum?
Velocity of the object x mass
Soccer players where cleats that strike into the ground to increase Acceleration, What do the studs of the cleats produce?
Finish the equation Force x Distance = Blank
Work
When the opposing goalie makes a save what happens to the energy from the shot?
The goalie absorbs the energy when catching the ball. According to the Law of energy conservation.
What is the path that a ball is on when kicked into the air?
Parabolic path
When receiving a pass a player will do what to slow the Momentum.
Cushion the ball into the foot absorbing energy and redirecting the momentum.
Which one of Newton's Laws states, "The change in velocity (acceleration) with which an object moves is directly proportional to the magnitude of the force applied to the object and inversely proportional to the mass of the object."
Newton's Second Law
What is force can effect the flight of the ball when shot?
The Magnus effect.
Kinetic Energy
When a ball is hit and the acceleration has come to an end what two forces are interacting with the ball?
Gravity and Friction
In physics what is the letter abbreviation for momentum.
? = m X v
p