Solving for Speed

PS.8 Work, Force & Motion

Today I will - complete calculating speed in practice questions
So that I can - apply mathematical and computational thinking to calculate and analyze speed, velocity, and acceleration (PS.8a)
I'll know I have it when - I can answer 80% of questions
correctly.

Multiple Choice

Motion is

• a word that rhymes with ocean.

• an object's change in its speed to a reference point.

• an object's change in position to a reference point.

• an object's change in position to its rate of speed.

Multiple Choice

A reference point is

• the object that appears to stay in place.

• the number to the right of the decimal point.

• the object that appears to be in motion.

• is calculated by using speed, distance, and time.

Multiple Choice

The best reference points are stationary (not moving).

• true

• false

Multiple Choice

What is speed?

• how far you go
• how much distance is covered over a period of time
• how fast you accelerate
• the change in the location of a object

Multiple Choice

Objects that are moving really fast have a lot of ________.

• Energy
• velocity
• knowlege
• gravity

Multiple Choice

What happens to the energy of an object as its speed decreases?

• It stays the same
• It increases
• It decreases
• It first decreases then increases again

The magic triangle can be used to
calculate the speed, distance and time with just a few small changes.

Multiple Choice

What is the formula to calculate speed?

• S = t/d
• S = d/t
• S = d x t
• S = t x d

Multiple Choice

Which of the following is a unit of speed?

• km/hr
• hr
• km
• s

Multiple Choice

Which of the following is a unit of speed ?

• sec
• mi
• m/s
• min

Multiple Choice

A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?

• 10 m/s

• 1000 m/s

• 100 seconds

• 10 seconds

Multiple Choice

Kendra is walking home and her house is 200 m away. It takes her 20 seconds to get home. What was her speed?

• 400 m/s

• 200 m/s

• 25 m/s

• 10 m/s

Multiple Choice

Which car is going the fastest speed?

• Car A-
   10 miles/hour
• Car B-
  20 miles/hour
• Car C-
  30 miles/hour
• Car D-
  40 miles/hour

Multiple Choice

Reese rides her bike 10 miles in 5 hours.
Avery rides her bike 15 miles in 5 hours. Which girl rides her bike faster?

• Reese
• Avery 

Multiple Choice

If you are solving for the distance, you would calculate the...

• time divided by speed

• speed divided by time

• speed multiplied by time

• distance multiplied by speed

Multiple Choice

Which of the following is a unit of distance ?

• miles/hr
• mi
• s
• min

Multiple Choice

Which of the following is a unit of distance ?

• miles/hr
• hr
• km
• min

Multiple Choice

Mike is running at a pace of 8 m/s for 8 seconds. What distance did he cover in 8 seconds?

• 64 m

• 1 m

• 8 m

• 24 m

Multiple Choice

Aaron is driving 70 km/hr for 3 hours. What distance did he cover?

• 25 km

• 210 km

• 70 km

• 1.5 km

Multiple Choice

In order to find the Time, you must

• divide the distance by the speed (distance/speed)

• multiply the distance by the speed (distance/speed)

• Neither of the Above

Multiple Choice

Which of the following is a unit of time?

• sec
• mi
• m/s
• km

Multiple Choice

Which of the following is a unit of time?

• km/hr
• hr
• km
• mi

Multiple Choice

Abby is driving at a speed of 30 km/hr over a distance of 600 km. How long will it take her to go 600 km?

• 300 hr

• 20 hr

• 15 hr

• 90 hr

Multiple Choice

Mr. Mellon is walking to school at a pace of 5m/s and the school is 500 s away. How long will it take him to get to school?

• 100 s

• 2500 s

• 10 s

• 150 s