Projectiles

An object is launched 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.MS-PS2-4

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

• Shot Bullet
• Dropped Bullet
• Hit at Same Time

What force acts in the y direction that causes an object to travel in a parabolic arc?

• Friction
• Gravity
• Tension
• No force acting.

Tags

NGSS.MS-PS2-4

A cannonball is fired at a 45.0° angle and an initial velocity of 625 m/s. Assume no air resistance. What is the vertical component of the cannonball’s velocity?What is the horizontal component of the cannonball’s velocity?

• -625 m/s; 625 m/s

• 441.9 m/s; 441.9 m/s

• -441.9 m/s; 441.9 m/s

• 0 m/s; 625 m/s

Tags

NGSS.MS-PS3-1

What is the height of a horizontal projectile if it takes 3 seconds to hit the ground?

• 3.00 m
• 29.4 m
• 44.1 m
• 88.3 m

Tags

NGSS.HS-PS2-4

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

• True
• False

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What is the vertical acceleration of a projectile?

• 0 m/s²
• -9.81 m/s²

Tags

NGSS.HS-PS2-1

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.MS-PS2-1

NGSS.MS-PS2-2

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 has the greatest maximum height?

• A
• B
• Both objects reach the maximum height
• unable to determine with the given information

Tags

NGSS.MS-PS2-4