4.2 Projectile Motion

What is speed?

• Distance traveled per unit of time

• An object's speed and direction of motion

• A change in velocity over a certain period of time

• Total distance traveled

What is velocity?

• Distance traveled per unit of time

• An object's speed and direction of motion

• A change in velocity over a certain period of time

• Total distance traveled

What is acceleration?

• Distance traveled per unit of time

• An object's speed and direction of motion

• A change in velocity over a certain period of time

• Total distance traveled

What is displacement?

• Distance traveled per unit of time

• An object's speed and direction of motion

• A change in velocity over a certain period of time

• Total distance traveled

Which is the SI Gravitational Constant?

• 9.8 m/sec²

• -9.8 m/sec²

• -32 ft/sec²

• 32 ft/sec²

Which is the US Customary Gravitational Constant?

• 9.8 m/sec²

• -9.8 m/sec²

• -32 ft/sec²

• 32 ft/sec²

A _________ is any moving object upon which the only active force is gravity.

• Projectile

• Cannonball

• Slug

• Shell

Gravity acting on a projectile will force it to fall in a/an __________.

• Parabolic Arc

• Straight Horizontal Line

• Straight Vertical Line

• Random Curve

True or False? When using a gravitational constant you have to use the absolute value since there is a negative in the formula already.

• True

• False

Which of the following are variables used in Projectile Motion calculations?

• Initial Velocity (V_i)

• Firing Angle (θ)

• Horizontal Distance Traveled (x)

• Height (h)

• Acceleration (a)