Physics Final Examination

Can be any object that will serve as the initial position.

• Motion

• Displacement

• Velocity

• Frame of reference

The pace an object travels in a certain amount of time is called _______.

• speed

• acceleration

• Velocity

• Motion

In physics, change with time of the position or orientation of a body.

• Reference Point

• Rest

• Motion

• Gravity

This is the starting point or the origin of measuring motion.

• Moving object

• Reference point

• Finish Point

• Reference Object

The physical quantities which have only magnitude.

• Scalar Quantity

• Vector Quantity

• Direction

• All of the choices

The physical quantities for which both magnitude and direction.

• Scalar quantity

• Vector Quantity

• Acceleration

• Speed

All of the given choices are example of vector quantity except one.

• Displacement

• Acceleration

• Speed

• Velocity

Is defined as the change in position of an object. It is a vector quantity and has a direction and magnitude.

• Distance

• Width

• Lenght

• Displacement

A hummingbird averages a speed of about 45 km/hour (Cool facts: They visit up to 1000 flowers per day, and reach maximum speed, while diving, up to 160 km/hour!). Ruby-throated hummingbirds take a non-stop trip across Gulf of Mexico in which they fly for 18 hours straight! How far is the trip across the Gulf of Mexico at their average speed?

• 810 km

• 2.5 km

• 3.6 km

• 360 km

An object is NOT accelerating if it is moving.

• in a circle

• at constant velocity

• at increasing speed

• only as influenced by gravity