Horizontal Projectile Motion

Horizontal Projectile Motion

Projectile Motion Notes

Projectiles - Objects thrown or launched into the air that are subject to gravity.

Projectiles

• Projectile Motion - Free fall with an initial horizontal velocity.

Components of Projectiles

• Projectiles have two components

• x = horizontal component

• y = vertical component

Multiple Choice

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

Multiple Choice

What can you say about motion in the x and y direction?

• x is dependent on y

• y is dependent on x

• They are dependent on each other.

• They are independent of each other.

Multiple Choice

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

Multiple Choice

As an object travels through the air, its vertical velocity

• changes continuously

• remains the same

Multiple Choice

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

• Friction

• Gravity

• Tension

• No force acting.

Multiple Choice

How can you describe the motion on the horizontal axis if you ignore air resistance?

• acceleration due to gravity
• constant velocity
• varying acceleration
• motionless

Multiple Choice

What is the horizontal acceleration of a projectile?

• 0 m/s²
• -10 m/s²

Multiple Choice

As a projectile moves through the air, the motion on y axis is best described as ____,

• free fall acceleration

• uniform motion

• varying speeds

• constant velocity

Multiple Choice

What is the vertical acceleration of a projectile?

• 0 m/s²
• -10 m/s²

Multiple Choice

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

Multiple Choice

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

Multiple Choice

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

Equations - These should look very familiar

Multiple Choice

A soccer ball is kicked horizontally off a cliff. What information is needed to find the time to fall?

• The height of the cliff

• The initial speed of the ball

• The mass of the ball

• All of these

Multiple Choice

A marble traveling at 3 m/s rolls off the edge of a 1 m high table. What is its initial vertical speed?

• -10 m/s

• 0 m/s

• -3 m/s

• -15 m/s

Equations - Vertical Motion

Equations - Horizontal Motion