Science 9 (Unit Test)

What is the value of the acceleration of gravity on Earth?

• g = 8.8 m/s^2

• g = 9.8 m/s^2

• g = 9.8 m/^s

• g = 11.8 m/s^2

What object follows a certain path that is acted upon by the force of gravity?

• Projectile

• Parabolic

• Trajectory

• Horizontal

What type of projectile motion where the path traced by an object accelerating only in the vertical direction while moving at constant horizontal velocity?

• Vertical

• Parabolic

• Trajectory

• Horizontal

It is a type of projectile motion where motion of a freely falling object, the force is due to gravity and velocity changes with time.

• Vertical

• Parabolic

• Trajectory

• Horizontal

What is the path of a projectile?

• Projectile

• Projectile

• Parabola

• Trajectory

Which of the following is NOT a factor that affects projectile motion?

• Time of Flight

• Range

• Speed

• Max. Height

Two objects are released from the same height. Object A falls straight down from the cliff and object B follows a curved parabolic path. Which of the following is true in the situation?

• A and B hit the ground at the same time.

• A hits the ground first because if it is heavier than B

• A hits the ground before B

• B is heavier than A

A heavy object and a light object have the same momentum. Which has the greater speed?

• both have the same speed

• light object

• heavy object

• none

Which is equivalent to an impulse?

• a force applied to an object for a period of time

• the change in mass of an object.

• a change in mass of the object

• the original momentum of the object

Two identical cars are travelling along EDSA. Which of the two cars would have a greater momentum?

• the slower car

• both have the same momentum

• the faster car

• cannot be easily determine