Science 9 -Quiz_Bonifacio23

Which of the following composed the two linear motions of a projectile?

• a. horizontal and circular motion

• b. vertical and circular motion

• c. horizontal and vertical motion

• d. vertical and curvilinear motion

What is referred to as an object that is given an initial velocity and is then acted solely upon by gravitational force?

• a. project

• b. projectile

• c. target

• d. trajectory

What do you call the path followed by a projectile?

• a. project

• b. projectile

• c. target

• d. trajectory

What is the shape of the trajectory of a projectile?

• a. circular

• b. elliptical

• c. hyperbolic

• d. parabolic

What force enables objects to fall on the ground?

• a. frictional force

• b. magnetic force

• c. gravitational force

• d. tension force

If you throw a baseball straight up, what will its vertical velocity be at the highest point?

• a. 0 m/s

• b. 9.8 m/s

• c. 0 m/s2

• d. - 9.8 m/s2

What is the acceleration of a baseball thrown to the air at an angle of 45 degrees with respect to the horizontal as it returns to the ground?

• a. 0 m/s

• b. 9.8 m/s

• c. 0 m/s2

• d. -9.8 m/s2

What happens to the vertical velocity of an object as it travels throught the air?

• a. changes continuously

• b. gradually decreasing

• c. gradually increasing

• d. remains the same

What happens to the horizontal velocity of an object as it travels through the air?

• a. changes continuously

• b. gradually decreasing

• c. gradually increasing

• d. remains the same

If a stone is horizontally launched at a certain height, how do you describe the magnitude of its vertical velocity as it approches the ground?

• a. cannot be determined

• b. gradually decreasing

• c. gradually increasing

• d. remains the same.