Projectile motion practice

Open Ended

Describe a real-life situation where you observed or experienced two-dimensional motion in a moving vehicle. What did you notice about the motion of objects inside the vehicle?

Multiple Choice

Why is understanding two-dimensional motion important when analyzing the movement of objects in vehicles?

• It helps predict the path of objects in moving vehicles.

• It is only useful for stationary objects.

• It is not relevant to real-life situations.

• It only applies to objects moving vertically.

Multiple Choice

If you throw a ball straight up in the air while riding in a car moving at a constant speed, where will the ball land?

• In your hand

• In front of you

• Behind you

• Outside the car

Open Ended

Explain why the ball lands back in your hand when you throw it straight up in a car moving at constant speed.

Multiple Choice

Which of the following statements best explains the motion of a projectile inside a moving car?

• The projectile keeps the same horizontal velocity as the car.

• The projectile stops moving horizontally when released.

• The projectile moves faster than the car.

• The projectile moves slower than the car.

Fill in the Blanks

The ball will land

you if the car accelerates after you throw it up.

Multiple Choice

Why does the ball land behind you when you throw it up in a car that is accelerating?

• Because the horizontal velocity of the projectile is constant but the car accelerates, so the ball travels less horizontal distance than the car.

• Because the ball loses all its velocity when thrown.

• Because the car moves in a straight line.

• Because the ball is heavier than the car.

Fill in the Blanks

Where will the ball land if you throw the ball up and your friend hits the brake after you throw it?

Multiple Select

Which of the following statements are true when you throw a ball up in a car moving at constant speed?

• The ball will land back in your hand if the car moves at constant speed.

• The ball will land behind you if the car accelerates.

• The ball will land in front of you if the car slows down.

• The ball will always land outside the car.

Open Ended

Explain why the ball lands in front of you when your friend hits the brake after you throw it up in a moving car.

Fill in the Blanks

The path of the ball from the teacher’s point of view is in the shape of a

.

Multiple Choice

Why does the path of a ball thrown in a moving car appear as a parabola to an observer outside the car?

• Because the ball is affected only by gravity

• Because the ball is travelling at a constant, horizontal velocity before and during its flight

• Because the car is accelerating

• Because the ball is spinning

Open Ended

What would the trajectory of the ball look like to you, in the car, as it travelled up and back down into your hand?

Multiple Select

Which of the following factors affect the horizontal displacement of a projectile thrown from a moving vehicle?

• Initial vertical velocity

• Horizontal velocity of the vehicle

• Time the projectile is in the air

• Mass of the projectile

Open Ended

Which ball would have a greater range (horizontal displacement): a red ball thrown up at 30 m/s in a car driving at 20 m/s, or a green ball thrown up at 20 m/s in a car driving at 30 m/s?

Multiple Choice

A package is dropped from an airplane to hit the ground at a designated spot. Where is the plane when the package hits the ground (neglecting air resistance)?

• Directly above the package

• Ahead of the package

• Behind the package

• Far away from the package

Multiple Select

Which of the following statements about projectile motion are correct?

• The trajectory of a projectile depends on the reference point.

• A projectile with a non-zero vertical component becomes more negative by -10 m/s of velocity every second due to gravity.

• The horizontal velocity of a projectile is constant.

• The vertical velocity of a projectile is constant.

Open Ended

What questions do you still have about projectiles in a moving car or two-dimensional motion?

Open Ended

After learning about two-dimensional motion in moving vehicles, what is one real-life situation where you could apply this knowledge?