Projectile Motion

The initial horizontal velocity of a projectile is ____ its final horizontal velocity.

• less than

• equal to

• greater than

What is true about the vertical velocity of a projectile launched horizontally?

• It is initially at its maximum value.

• It increases due to gravity as it falls.

• It remains constant throughout its trajectory.

• It decreases as it falls due to gravity.

What is the vertical acceleration of a projectile in real life?

• 0 m/s²

• 9.8 m/s²

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

A projectile is launched horizontally from a 100-meter high platform. If the initial speed is doubled, how does the range change?

• The range is halved.

• The range remains the same.

• The range doubles.

• The range quadruples.

A projectile is launched at an angle of 30° with an initial velocity of 50 m/s. What is the horizontal component of its velocity?

• 25 m/s

• 43.3 m/s

• 50 m/s

• 30 m/s

Tags

DOK Level 2: Skill/Concept

Describe how the time of flight of a horizontally launched projectile is affected by the height from which it is launched.

• The time of flight is independent of the launch height.

• The time of flight decreases with increasing height.

• The time of flight increases with increasing height.

• The time of flight is inversely proportional to the launch height.

• 10 m/s

• 15 m/s

• 20 m/s

• 25 m/s

What is the vertical component of a projectile's velocity if it is launched at an angle of 45° with a speed of 20 m/s?

• 10 m/s

• 14.1 m/s

• 20 m/s

• 28.3 m/s

Tags

DOK Level 2: Skill/Concept

What is the primary factor that affects the maximum height reached by a projectile?

• The mass of the projectile

• The initial vertical velocity component

• The horizontal distance traveled

• The angle of launch

Tags

NGSS.HS-PS3-2