Projectiles

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

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

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

If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first?(neglect air resistance) 

• Shot Bullet
• Dropped Bullet
• Hit at Same Time

If car A is horizontally driving off a cliff at the same moment car B is pushed from the same cliff, which has a larger vertical speed when they hit the ground?(neglect air resistance) 

• Car A
• Car B
• Same for Both
• heavier car

Tags

NGSS.HS-PS2-4

Which of the following would NOT be considered a projectile? 

• a cannonball thrown straight up
• a cannon ball rolling down a slope
• a cannonball rolling off a table
• a cannonball thrown in the air

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

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

Tags

NGSS.MS-PS2-4

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

Tags

NGSS.HS-PS2-2

Suppose an object is in free fall.(neglect air resistance) Each second the object falls _________

• the same distance as in the second before.
• a larger distance than in the second before.
• with the same instantaneous speed.
• with the same average speed.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

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

• 0 m/s²
• 9.8 m/s²

Tags

NGSS.HS-PS2-1

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

• 0 m/s²
• 9.8 m/s²

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4