Physics Unit 3 Review

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

• True
• False

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

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

What is the horizontal acceleration of a projectile?

• 0 m/s²
• 9.8 m/s²

What is the vertical acceleration of a projectile?

• 0 m/s²
• 9.8 m/s²

An object is projected horizontally from a cliff.  The time it takes to hit the ground is

• more than if it was just dropped
• less than if it was just dropped
• the same amount of time than if it was just dropped
• impossible to determine

If I throw a crayon straight up at 12m/s, how fast is its speed when i catch it at the same height?

• 6 m/s
• 12 m/s
• 18 m/s
• 24 m/s

As an object travels through the air, its vertical velocity 

• changes continuously
• remains the same

Consider drops of water leaking from a water faucet. As the drops fall they 

• remain at a relatively fixed distance from each other
• get farther apart
• get closer together

Two balls of the same mass begin at a height of 2m. One is released from rest while the other begins with a horizontal velocity of 5m/s. Which object its the ground first?

• Ball A
• Ball B
• Both balls his the ground at the same time
• unable to determine with information given