Speed, velocity, Motion Graphs, and Acceleration test notes

What is the definition of speed and what is the formula?

• Speed is the rate of change of position. The formula for speed is position divided by time.
• Speed is the distance traveled per unit of time. The formula for speed is distance multiplied by time.
• Speed is the distance traveled per unit of time. The formula for speed is distance divided by time.
• Speed is the amount of energy exerted per unit of time. The formula for speed is energy divided by time.

Tags

NGSS.MS-PS3-1

What is the definition of displacement and its' formula?

• Displacement is the speed and direction of an object's change in position. The formula for displacement is: displacement = final position + initial position.
• Displacement is the distance and direction of an object's change in position from its ending point. The formula for displacement is: displacement = final position - initial position.
• Displacement is the distance and direction of an object's change in position from its starting point. The formula for displacement is: displacement = final position + initial position.
• Displacement is the distance and direction of an object's change in position from its starting point. The formula for displacement is: displacement = final position - initial position.

What is the definition of velocity and its' formula?

• Velocity is the rate of change of an object's position with respect to a frame of reference and its formula is v = Δx/Δt
• Velocity is the force applied to an object and its formula is v = F/m
• Velocity is the distance traveled by an object and its formula is v = d/t
• Velocity is the measure of an object's weight and its formula is v = mgh

What are the two types of speed?

• Fast speed and Slow speed
• Instantaneous speed and Average speed

• Velocity and Acceleration
• Constant speed and Variable speed

How do you calculate velocity?

• Displacement divided by time taken
• Speed multiplied by time taken
• Time taken divided by displacement
• Distance multiplied by time taken

What is the definition of a vector and what are some vectors?

• A vector is a type of insect that feeds on plants. Some examples of vectors include bees, butterflies, and ants.
• A vector is a type of mathematical equation used in calculus. Some examples of vectors include linear equations, quadratic equations, and exponential equations.
• A vector is a type of musical instrument. Some examples of vectors include guitar, piano, and drums.
• A vector is a quantity that has both magnitude and direction. Some examples of vectors include force, velocity, and displacement.

What are motion graphs?

• Visual representations of an object's motion over time
• A type of dance choreography
• A form of abstract art
• A method of predicting the future

Tags

NGSS.MS-PS3-1

If something is not moving, is it at rest?

• Depends on the situation
• Maybe
• Yes
• No

What graph shows constant speed?

• Acceleration-time graph
• Velocity-time graph
• Temperature-time graph
• Distance-time graph

The steeper the line, the higher the speed

• True

• Flase

Tags

NGSS.MS-PS3-1