Projectile Motion

What role does gravity play in the trajectory of an object in projectile motion?

• Determines the firing angle.

• Affects the initial speed.

• Causes the object to curve downward.

• Has no effect on the trajectory.

How does changing the mass of an object affect its projectile motion if air resistance is neglected?

• It has no significant effect on height.

• It decreases the maximum height.

• It increases the maximum height.

• It increases the range.

What is the primary effect of altering the initial speed in projectile motion?

• Changes in trajectory shape.

• Increase in maximum height.

• Increase in range.

• Decrease in horizontal velocity.

How does increasing the initial height of an object impact its projectile motion?

• Decreases maximum height and range.

   

• Increases maximum height and range.

• Decreases maximum height but increases range.

• Increases maximum height but decreases range.

How does increasing the firing angle affect the range of a projectile?

• Increases the range.

• Decreases the range.

• No effect on the range.

• Increases the maximum height but decreases the range.

Which kinematic equation represents the change in vertical velocity of a projectile due to a gravitational acceleration (g) over time (t)?

Which kinematic equation is most appropriate to calculate the time of flight of a projectile motion?

If a projectile is launched with an initial speed of 20 m/s at an angle of 45 degrees above the horizontal, what is its maximum height above the launch point?

• 10 meters

• 20 meters

• 30 meters

• 40 meters

A cannonball is fired from a cannon with an initial speed of 30 m/s at an angle of 30 degrees above the horizontal. What is the horizontal range of the cannonball? (Neglect air resistance)?

• 60 meters

• 90 meters

• 120 meters

• 150 meters

What is the vertical velocity of a projectile at the highest point of its trajectory, assuming it was launched vertically upward with an initial speed of 10 m/s?

• 10 m/s upward

• 0 m/s

• 10 m/s downward

• 20 m/s downward