Physics Semester Review

Scalars only have magnitude and not ___

Tags

NGSS.MS-PS3-1

Which type of vector represents the change in position of an object?

• Position vector

• Displacement vector

• Velocity vector

• Force vector

Which of the following are examples of scalars?

• Temperature, mass, and time
• Force, power, and energy
• Distance, velocity, and acceleration
• Volume, density, and pressure

Which of the following are examples of vectors?

• Displacement, velocity, and force
• Temperature, pressure, and volume
• Distance, time, and power
• Mass, acceleration, and energy

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

NGSS.HS-PS2-2

NGSS.HS-PS2-3

NGSS.HS-PS3-5

Which of the following statements is true about motion?

• Motion is always relative to something else.

• Motion is always absolute and independent.

• Motion is only relative when observed from a moving object.

• Motion is only relative when observed from a stationary object.

What does relative velocity describe?

• The speed of an object in motion

• The direction of an object in motion

• The rate of change of an object's position relative to another

• The force acting on an object

What is a frame of reference?

• A coordinate system relative to which the position, motion, or properties of an object can be described.

• A measurement of the distance between two objects.

• A method for calculating the speed of an object.

• A type of motion that occurs when an object changes its position relative to a reference point.

Which of the following best describes the concept of relative motion in physics?

• The motion of an object with respect to itself
• The motion of an object with respect to gravity
• The motion of an object with respect to another object or observer
• The motion of an object with respect to time

What is the train's speed with respect to the stationary observer?

• 40 mph

• 50 mph

• 10 mph

• 30 mph

What is the walker's speed from the observer's perspective?

• 10 mph

• 40 mph

• 50 mph

• 30 mph