Physics Unit 3 Summative

Which of the following statements describes a projectile's flight path the best?

• A straight path

• A unknown path

• A parabolic path

• A triangular path

Which of the following is not a property of projectile motion?

• Parabolic shape

• Free fall motion

• Constant horizontal velocity

• Constant vertical velocity

Tommy is trying to make the varsity soccer team. He is practicing kicking the ball over opposing players and wants to know at what point his ball will reach its peak. Which statement would be the correct response?

• Just after it is kicked

• When the horizontal and vertical components are zero

• When only the vertical velocity is zero

• When only the horizontal velocity is zero

Which of the following answer choices would describe a scalar quantity?

• Tommy accelerated 8 m/s² north for 10 seconds before stopping

• Tommy's velocity changes from 2 m/s to 10 m/s

• Tammy had a speed of 7.3 m/s

• Their total displacement was 11.6 m

Referring to the speed of a plane in the sky, what is the plane's velocity relative to when saying it is traveling 200 m/s?

• The earth

• The pilot

• A cloud

• The command tower or another plane

When using the pythagorean theorem, or SOH CAH TOA, what must be true about the triangle for the functions to be accurate?

• It must be a right triangle

• It must have 3 sides

• There is at least angle measurement

• We have the magnitudes of the legs

During a football game, the home team players are running at an opposing player to tackle them. One player is running from behind the ball carrier, and the other player is running toward the ball carrier from his front. Which statement about the separate relative velocities of the home team players is true?

A passenger on a bus moving east sees a man standing on a curb. From the passenger's perspective, the man appears to:

• Stand still

• Be moving west at the speed of the bus

• Be moving east at the speed of the bus

• There is not enough information

Which of the following is a physical quantity that has a magnitude but no direction?

• Vector

• Resultant

• Frame of reference

• Scalar

Find the resultant angle and give the correct cardinal direction based on the image below:

• 47 degrees west of north

• 1 degree west of north

• 47 degrees north of west

• 1 degree north of west