Physics 9 Pre Test 1

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 to 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.0m/s

• B.9.8m/s

• C. 0m/s^2

• D.-9.8m/s^2

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.0m/s

• B.9.8m/s

• C. 0m/s^2

• D.-9.8m/s^2

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

• A. Cannot be determined

• B. Gradually decreasing

• C. Gradually increasing

• D. Remains the same