2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Circular Motion Free Fall Newton’s Laws Projectile Motion Misc.

“ Centripetal” Acceleration means…? Answer

Centripetal acceleration means…? “ center-seeking”

All circular motion has acceleration directed towards…? Answer

All circular motion has acceleration directed towards…? The center of motion

The acceleration of an object in circular motion does not depend on…? Answer

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? Answer

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 re-written? Answer

The equation for centripetal force is just which equation re-written? Newton’s Second Law

This is the only force acting on objects in freefall? Answer

This is the only force acting on objects in freefall? Gravity

Freefall is the same as floating. T or F. Answer

Freefall is the same as floating. T or F. False.

Astronauts in space are freefalling constantly. T or F. Answer

Astronauts in space are freefalling constantly. T or F. True

Weightlessness is another form of freefall. Answer

Weightlessness is another form of freefall. True.

All objects in freefall have the same speed. T or F. Answer

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. Answer

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. Answer

Inertia is a property of mass. T or F. True.

The equation for weight is a rearranged form of Newton’s First Law. Answer

The equation for weight is a rearranged form of Newton’s First Law. No, 2 nd Law.

Daily Double

Explain Newton’s 2 nd Law in words. Answer

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 1 st Law. T or F. Answer

The recoil of gun is explained by Newton’s 1st Law. T or F. F, Newton’s 3 rd Law.

The vertical speed of a projectile never changes. Answer

The vertical speed of a projectile never changes. False, it is always accelerating.

What is the equation for the horizontal component of a projectile? Answer

What is the equation for the horizontal component of a projectile? V x = v 0 cos θ

The shape of the trajectory of a projectile is a…? Answer

The shape of the trajectory of a projectile is a…? Parabola

What is the definition of a projectile? Answer

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? Answer

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? Answer

Which is bigger: a mile or a kilometer? A kilometer

What charge does a proton have? Answer

What charge does a proton have? Positive

Why is the sky blue? Answer

Why is the sky blue? Because of the diffraction of sunlight through the atmosphere.

What element do all living things have in common? Answer

What element do all living things have in common? Carbon

What is the difference between speed and velocity? Answer

What is the difference between speed and velocity? Velocity is speed in a particular direction