SCIENCE 9 (4TH QUARTERLY)

What is the path followed by a projectile called?

• Velocity Path

• Motion Track

• Trajectory

• Free Fall Path

Which factor does NOT affect projectile motion?

• Initial velocity

• Mass of the object

• Air resistance (if negligible)

• Angle of launch

What is the formula for calculating the range of a projectile?

• R=vi*t+1/2*gt^2

• R=vi^2*sin(2θ)/g

• R=vi*sin(θ)

• R=gt^2

What is an example of a Type I projectile?

• A ball thrown at an angle

• A rock dropped from a height

• A car moving on a road

• A balloon rising in the air

What type of motion does a projectile undergo in the horizontal direction?

• Free fall

• Uniform motion

• Accelerated motion

• Circular motion

What is the equation for momentum?

• p=mv

• p=ma

• p=v/t

• p=mg

Which of Newton’s laws explains why passengers lurch forward when a moving vehicle suddenly stops?

• First Law (Inertia)

• Second Law (Acceleration)

• Third Law (Action-Reaction)

• Law of Conservation of Energy

If the mass of an object doubles while keeping velocity constant, its momentum will:

• Remain the same

• Double

• Halve

• Become zero

A moving ball collides with another at rest, and they both move separately after collision. This is an example of:

• Inelastic collision

• Elastic collision

• Projectile motion

• Newton’s Second Law

What does impulse measure?

• Change in energy

• Change in force

• Change in momentum

• Change in velocity