Circular Motion
Free Fall
Newton’s Laws
Projectile Motion
Misc.
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“Centripetal” Acceleration means…?
Centripetal acceleration means…?
“center-seeking”
All circular motion has acceleration directed towards…?
All circular motion has acceleration directed towards…?
The center of motion
The acceleration of an object in circular motion does not depend on…?
The acceleration of an object in circular motion does not depend on…?
mass
All objects in circular motion move faster on the edge of the circle or in the middle?
All objects in circular motion move faster on the edge of the circle or in the middle?
The edge
The equation for centripetal force is just which equation rewritten?
The equation for centripetal force is just which equation rewritten?
Newton’s Second Law
This is the only force acting on objects in freefall?
This is the only force acting on objects in freefall?
Gravity
Freefall is the same as floating. T or F.
Freefall is the same as floating. T or F.
False.
Astronauts in space are freefalling constantly. T or F.
Astronauts in space are freefalling constantly. T or F.
True
Weightlessness is another form of freefall.
Weightlessness is another form of freefall.
True.
All objects in freefall have the same speed. T or F.
All objects in freefall have the same speed. T or F.
It depends on if there is air resistance or not.
In 10 words or less, list the three laws of motion.
In 10 words or less, list the three laws of motion.
1st: objects in motion, stay in motion, etc.
Inertia is a property of mass. T or F.
Inertia is a property of mass. T or F.
True.
The equation for weight is a rearranged form of Newton’s First Law.
The equation for weight is a rearranged form of Newton’s First Law.
No,
nd 2
Law.
Daily Double
nd Explain Newton’s 2
Law in words.
Explain Newton’s 2nd Law in words.
A net force on a mass causes and acceleration.
The recoil of gun is explained by Newton’s st Law. T or F. 1
The recoil of gun is explained by Newton’s 1st Law. T or F.
F, Newton’s
rd 3
Law.
The vertical speed of a projectile never changes.
The vertical speed of a projectile never changes.
False, it is always accelerating.
What is the equation for the horizontal component of a projectile?
What is the equation for the horizontal component of a projectile?
Vx = v0 cosθ
The shape of the trajectory of a projectile is a…?
The shape of the trajectory of a projectile is a…?
Parabola
What is the definition of a projectile?
What is the definition of a projectile?
Any object that is kicked, shot, or thrown and acted upon by gravity.
What is the relationship between vertical velocity and horizontal velocity of a projectile?
What is the relationship between vertical velocity and horizontal velocity of a projectile? They are independent of each other
Which is bigger: a mile or a kilometer?
Which is bigger: a mile or a kilometer?
A kilometer
What charge does a proton have?
What charge does a proton have?
Positive
Why is the sky blue?
Why is the sky blue?
Because of the diffraction of sunlight through the atmosphere.
What element do all living things have in common?
What element do all living things have in common?
Carbon
What is the difference between speed and velocity?
What is the difference between speed and velocity?
Velocity is speed in a particular direction