S1.20 Projectile Motion

Multiple Choice

What is the force acting on a projectile after the initial force that launched it?

• Gravity

• Friction

• Air resistance

• Magnetism

Multiple Choice

What is the significance of studying projectile motion launched horizontally in physics?

• It helps us understand how objects move in the air and predict their paths.

• It only applies to sports and is not useful in real life.

• It is mainly about memorizing formulas without practical use.

• It is only important for astronauts.

Multiple Select

Which of the following statements about projectile motion are correct?

• The velocity in the x-direction does not change.

• The velocity in the y-direction increases due to gravity.

• The resultant velocity is the vector sum of the horizontal and vertical motions.

• The velocity in the x-direction increases over time.

Multiple Choice

An object is launched horizontally with an initial velocity in the horizontal direction, v_^x, of 158 cm/s. What is the initial velocity in the vertical direction, v_y?

• 158 cm/s

• 0 cm/s

• -158 cm/s

• 316 cm/s

Multiple Choice

If a sphere is rolled down a ramp and projected off of a table with an initial v_x of 158 cm/s, what would its final v_x be just before impact?

• 79 cm/s

• 158 cm/s

• 316 cm/s

• 9.8 cm/s

Multiple Choice

Which of the following best describes the difference between horizontal and vertical motion in projectile motion?

• Horizontal motion is constant velocity, vertical motion is accelerated by gravity.

• Both horizontal and vertical motions are constant velocity.

• Horizontal motion is accelerated by gravity, vertical motion is constant velocity.

• Both horizontal and vertical motions are accelerated by gravity.

Multiple Choice

What is the main learning objective for students regarding two dimensional projectile motion as described in the Demonstration of Learning?

• To describe and analyze acceleration using equations for objects launched without an angle

• To memorize the equations for projectile motion

• To solve only one practice question correctly

• To focus on three dimensional motion only

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​Click on the link below and follow the instructions in your student handout.
https://phet.colorado.edu/sims/html/projectile-motion/latest/projectile-motion_en.html