SCI9 QUIZ 3- FREE FALL, MOMENTUM, PROJECTILE MOTION

What is the path of a horizontally launched projectile called?

• Circular path

• Vertical path

• Parabolic path

• Linear path

In horizontal projectile motion, what remains constant throughout the motion?

• Vertical velocity

• Horizontal velocity

• Total mechanical energy

• Acceleration due to gravity

What factors affect the range of a projectile launched at an angle?

• Initial velocity, launch angle, gravity, and air resistance.

• Temperature and humidity

• Color of the projectile

• Weight of the launcher

How does air resistance impact the motion of a projectile?

• Air resistance increases the speed of a projectile.

• Air resistance decreases the range and height of a projectile.

• Air resistance has no effect on the motion of a projectile.

• Air resistance only affects the weight of a projectile.

What is the acceleration of an object in free fall near the Earth's surface?

• 9.81 m/s²

• 15.0 m/s²

• 4.9 m/s²

• 0 m/s²

Define free fall in the context of projectile motion.

• Free fall is when an object moves horizontally at a constant speed.

• Free fall is the motion of an object under the influence of gravity alone, without air resistance.

• Free fall is the motion of an object in a vacuum with no gravitational force.

• Free fall occurs when an object is thrown upwards against gravity.

What is the formula for calculating the momentum of an object?

• p = m + v

• p = m * v

• p = m - v

• p = m / v

How does mass affect the momentum of a projectile?

• Momentum is only affected by velocity, not mass.

• Mass has no effect on momentum.

• Mass directly affects the momentum of a projectile; greater mass results in greater momentum.

• Increasing mass decreases momentum.

If a projectile is launched at an angle, what are the two components of its motion?

• Static and dynamic components

• Diagonal and lateral components

• Forward and backward components

• Horizontal and vertical components

What happens to the vertical velocity of a projectile as it rises?

• The vertical velocity decreases.

• The vertical velocity increases.

• The vertical velocity remains constant.

• The vertical velocity fluctuates randomly.