EASY ROUND

This is a combination of horizontal motion caused by the velocity of projection and vertical motion caused by the earth’s gravitational pull.

• free fall

• air resistance

• projectile motion

• momentum

EASY ROUND

Consider a plane moving with a constant speed at an elevated height above the Earth’s surface. In the course of its flight, the plane drops a package from its luggage compartment. Where will it land with respect to the plane?

• behind the plane

• directly below the plane

• in front of the plane

• none of the above

EASY ROUND

What do you call the path of a projectile?

• range

• trajectory

• maximum height

• hyperbola

EASY ROUND

In the absence of air resistance, a projectile has its maximum range when fired at an angle of _____ with the ground.

• 30.0⁰

• 45.0⁰

• 60.0⁰

• 75.0⁰

EASY ROUND

Which quantity is NOT negative when an object is dropped from a cliff?

• time

• velocity

• displacement

• acceleration

EASY ROUND

An object is launched straight up into the air. When it reaches its maximum height, its velocity is ____.

• equal to the acceleration

• zero

• equal to the product of displacement and time

• equal to the quotient of displacement and time

EASY ROUND

A paper ball is thrown horizontally from the table. How will you describe the ball’s horizontal and vertical velocity at the start?

• constant vertical and zero horizontal motion

• constant horizontal and zero vertical velocity

• constant vertical and horizontal velocity

• zero vertical and horizontal velocity

EASY ROUND

What quantities are involved in the momentum of an object?

• time and mass

• velocity and acceleration

• mass and time

• mass and velocity

EASY ROUND

A bug splatters on the windshield of a moving car. Compared to the change in momentum of the car, the change in momentum of the bug is __________.

• larger

• smaller

• equal to that of the car

• none of the above

EASY ROUND

When a coaster car falls, the _______.

• potential energy increases

• kinetic energy decreases

• kinetic energy decreases and potential energy increases

• kinetic energy increases and potential energy decreases