Freefall and 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

If the time to get to the highest point is 2.6 s, what would be the total time in the air?

• 2.6 s

• 3.8 s

• 5.2 s

• 4.9 s

Tags

NGSS.HS-PS2-4

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

• True
• False

Tags

NGSS.MS-PS2-4

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

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

Two objects - one with mass m and the other with mass 2m - are released from rest at the same height (neglecting air resistance). Which object hits the ground first?

• mass m
• mass 2m
• both objects hit the ground at the same time
• unable to determine with information given

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.HS-PS2-4

A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How long until the bullet reaches the ground?

• 0.52 s
• 0.27 s
• 0.13 s
• 0.36 s

Tags

NGSS.HS-PS2-4

You project a ball horizontally from a lab bench. The ball lands on a bullseye marked on the floor a horizontal distance equal to the ball's initial speed

• multiplied by its time in the air.

• coupled with its speed of fall.

• squared plus its downward speed squared when hitting the floor.

• none of the above