Introduction to Projectile Motion

The acceleration during the whole trip, on the vertical component, is always...

• 0 m/s²

• 3.6 m/s²

• 5 m/s²

• 9.8 m/s²

Tags

NGSS.HS-PS2-1

The acceleration during the whole trip, on the horizontal component, is always...

• 0 m/s²

• 3.6 m/s²

• 5 m/s²

• -9.8 m/s²

Tags

NGSS.HS-PS2-1

The final velocity in the y direction on the highest point is...

• 2.1 m/s

• positive

• 0 m/s

• negative

The more mass an object has, the faster it will fall.

• True
• False

Tags

NGSS.HS-PS2-1

What is the resultant of these two vectors?

• +2a
• 0
• -2a
• +a

Which statement describes a vector?

• It has magnitude but no direction
• It has direction but no magnitude
• It has both direction and magnitude
• It has constant magnitude but no
   direction

The horizontal component of a projectile's velocity is independent of...

• it's range
• time
• the vertical component
• none of these

In the absence of air friction, the vertical component of a projectile's velocity doesn't change as the projectile moves. 

• True
• False
• Sometimes true
• Sometimes false

In the absence of air friction, the horizontal component of a projectile's velocity doesn't change as the projectile moves. 

• True
• False
• Sometimes true
• Sometimes false

At the instant a ball is thrown horizontally with a large force, an identical ball is dropped from the same height. Which ball hits the ground first? 

• Neither- they hit at the same time
• the horizontally thrown ball
• the dropped ball
• None of these