D = RT & Motion

What is the time formula ?

• T=R/D
• T=D/R
• T=D*R
• T=minutes

What is the rate formula?

• R=D/T
• R=D*T
• R=T/D
• We did not learn this

What is the distance formula?

• D=R/T
• D=T/R
• D=R*T
• Uhhh...

What is speed?

• how much an object’s position changes

• how far an object moves

• how long an object moves

• how far an object moves in a certain amount of time

Which of the following is a unit of distance ?

• miles/hr

• mi

• sec

• min

Which of the following is a unit of time?

• sec

• mi

• m/s

• km

Which of the following is a unit of speed ?

• sec

• mi

• m/s

• min

Two cars are in motion for the same amount of time. What will determine which car covers more distance?

• the starting position of the each car

• the speed of each car

• the direction in which each car moves

• the length of the car

A car is driven for 3 hours. What else do you need to know to describe this car’s speed?

• the road the car in driven on

• the time of day

• the distance the car is driven

• the number of passengers in the car

Which information is needed to determine how fast a truck is traveling?

• direction and mass

• distance and time

• size and speed

• time and weight