Science 9 - Projectile Motion

Which of the following best describe the projectile motion?

• An object that moves with a pivot.

• A motion with constant horizontal acceleration only.

• A motion with constant horizontal velocity and downward acceleration.

• A motion with downward constant velocity and uniform horizontal acceleration.

Which of the following does not represent a projectile motion?

• Motion of a basketball thrown to another member of the team.

• Motion of a soccer ball kicked by a player.

• Motion of a ball tossed in the air at an angle.

• Motion of an apple falling from the tree.

At what angle should of water hose be aimed for the water to land with the greatest range?

• 0 °

• 30 °

• 45 °

• 60 °

What is the path of a soccer ball kicked from a height of 5 meters?

• Circular

• Parabolic

• Linear

• Hyperbolic

Which of the following is true about projectile?

• Horizontal and vertical motion can be treated separately.

• Projectile always maintains a constant horizontal acceleration.

• Projectile always experiences a constant acceleration along the x-axis.

• Projectile that moves through the air is affected by air resistance.

What happens to the vertical component of velocity during the motion of a projectile?

• It increases

• It decreases

• It remains constant

• It depends on the angel of the projection

What is the best angle of release for a projectile to obtain maximum range?

• 45 degrees

• 60 degrees

• 90 degrees

• It depends on the initial velocity

At what point in its path is the vertical component of the velocity (𝑣_y) of a projectile launched at an angle the smallest?

• As it nears the top

• At the top

• Halfway to the top

• The instant it is thrown

How would you describe the horizontal motion of a projectile launched at an angle?

• It has a uniform horizontal acceleration

• It has a varying horizontal velocity

• It has a constant horizontal acceleration

• It has a uniform velocity

At what point in its path is the horizontal component of the velocity (𝑣_x) of a projectile the smallest?

• As it nears the top

• At the top

• Halfway to the top

• It is the same throughout the path