Two-Dimensional Motion Quiz

What is the trajectory of an object thrown horizontally?

• Hyperbola

• Straight line

• Circle

• Parabola

What is the name given to the motion of an object after it leaves the hand?

• Linear motion

• Circular motion

• Projectile motion

• Rotational motion

What is the acceleration in the X direction in projectile motion?

• Zero

• Positive

• Depends on the object

• Negative

What is the acceleration in the Y direction in projectile motion?

• Positive

• Zero

• Negative

• Depends on the object

What is the equation for the vertical position in projectile motion?

• y = y_initial + v_initial

• y = y_initial + a * t

• y = y_initial + v_initial * t

• y = y_initial + v_initial * t + 1/2 * a * t^2

What is the equation for the time of flight in projectile motion?

• t = sqrt(h / g)

• t = sqrt(2 * h / g)

• t = sqrt(2 * h * g)

• t = sqrt(h * g)

If an object is dropped vertically, how does the time of flight compare to that of a horizontally launched object?

• It depends on the height

• The time of flight is the same

• The time of flight is longer

• The time of flight is shorter

What is the approximate height of the Empire State Building in meters?

• 1,500

• 2,000

• 1,250

• 1,000

What is the time of flight for an object dropped from the top of the Empire State Building?

• 11 seconds

• 5 seconds

• 7 seconds

• 9 seconds

What is the acceleration due to gravity in projectile motion?

• 9.8 m/s

• 10 m/s^2

• 9.8 m/s^2

• 10 m/s