Speed,velocity,acceleration

what is speed?

• speed is the scalar quantity that is the magnitude of the velocity vector

• riding in a car

• a dinosaur

• Higher speed means an object is moving faster.

what is velocity?

• something you call science

• something above you

• the speed of something in a given direction

• the rate at which money changes hands within an economy

what is acceleration?

• something that deals with math

• increase in the rate or speed of something.

• when you tell someone something

• a vehicle's capacity to gain speed within a short time.

A place or object used for comparison to determine if another object is in motion is called a

• comparison point

• point of view

• reference point

• motion detector

A distance vs. time graph shows an object's

• acceleration

• frame of reference

• favorite food

• speed

Change in speed over a given period of time is

• acceleration

• motion

• velocity

• speed

The speed at any single instant of time?

• speed

• average speed

• instantaneous speed

• velocity

Acceleration of an object happens when things

• slow down

• go faster

• All of the above

• change direction

Total distance divided by total time is

• acceleration

• constant speed

• instantaneous speed

• average speed

The correct equation to calculate speed is

• distance/time²

• distance/time

• distance x time

• time/distance