4th Quarter Summative Test in Science 9

Front

Which of the following composed the two linear motions of a projectile? Horizontal and Circular Motion, Vertical and Circular Motion, Horizontal and Vertical Motion, Vertical and Curvilinear Motion

Back

Horizontal and Vertical Motion

Front

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

Back

Projectile

Front

What do you call the path followed by a projectile?

Back

Trajectory

Front

What is the shape of the trajectory of a projectile?

Back

Parabolic

Front

What force enables objects to fall on to the ground?

Back

Gravitational Force

Front

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?

Back

-9.8 m/s

Front

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

Back

Gradually decreasing

Front

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

Back

Remains the same

Front

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

Back

Gradually increasing

Front

What happens to the vertical velocity (푣푦) of the golf ball as it rises in the air? (it increases, it decreases)

Back

decreases