Projectile Motion, Circular Motion, and Relative Velocity

What is the horizontal acceleration of a projectile?

• 0 m/s²
• 9.8 m/s²

Tags

NGSS.HS-PS2-1

If you throw a baseball straight up, what is its acceleration at the highest point?

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

Tags

NGSS.HS-PS2-1

Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object will hit the ground first?

• A
• B
• Both objects hit the ground at the same time
• unable to determine with the given information

The shape of the path a projectile follows...

• circular
• linear
• wavy
• parabolic

What is the vertical acceleration of a projectile?(neglect air resistance) 

• 0 m/s²
• 9.8 m/s²

Tags

NGSS.HS-PS2-1

In a projectile motion we always have...

• 1 component (x)

• 3 components (x,y, and z)

• 2 components (x and y)

• 0 components

Tags

NGSS.HS-PS2-1

What is the direction of the acceleration for any projectile?

• The direction the projectile is traveling.

• Down

• Up

• Sideways

Tags

NGSS.HS-PS2-4

A ball is thrown and follows the parabolic path shown above. Air friction is negligible. Point Q is the highest point on the path. Points P and R are the same height above the ground. Which of the following diagrams best shows the direction of the acceleration of the ball at point P?

• 
• 
• 
• 
• 

Tags

NGSS.HS-PS2-1

If a ball thrown straight up into the air takes 4 seconds to reach the top (peak), how long will it take to travel from the peak back to the original position?

• 0s

• 1s

• 3s

• 4s

The fact that an apple and a watermelon, dropped simultaneously from the same height, would hit the ground at the same time indicates that

• you don't like apples or watermelons.

• greater masses have greater acceleration.

• lesser masses have greater acceleration.

• acceleration is independent of mass.

Tags

NGSS.HS-PS2-1