GP1-Second Quarter Review

If you throw a baseball straight up, what is its vertical (along the y-direction) velocity at the highest point?

• 9.8 m/s

• 0 m/s²

• 0 m/s

• 9.8 m/s²

What is the horizontal (along the x-direction) acceleration of a projectile?

• 9.8 m/s²

• 0 m/s²

The shape of the path a projectile follows is

• circular

• linear

• parabolic

• curved

What is the vertical (along the y-direction) acceleration of a projectile?

• 9.8 m/s²

• 0 m/s²

In a projectile motion we always have

• one component (x)

• two components (x, y)

• three components (x,y,z)

• zero component

The maximum range occurs at a projection angle of

• 0 degrees

• 15 degrees

• 45 degrees

• 90 degrees

Centripetal force is an acceleration of an object moving in circular path whose direction is

• towards the tangent of the circle

• towards the center of the circle

In uniform circular motion, the magnitude of the _______________________ of an object is constant but the __________ is continually changing.

• speed, acceleration

• acceleration, speed

• speed, direction

• acceleration, velocity

The velocity is always _____ to the line of a circle. 

• outwards

• tangent

Which statement is true about an object that is traveling in uniform circular motion?

• The speed of the object varies.

• The direction of the object's velocity is constant.

• The net force on the object is directed away from the center of the circular path.

• The net force on the object is directed toward the center of the circular path.