Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

B11 Motion test

QuestionAnswer
Acceleration includes both speed and direction.
An object at rest stays in rest because of inertia
Velocity includes speed and direction
The starting speed of an object (like a bike, car, bus, etc..) is initial speed.
Mass is the amount of matter in an object \
The formula to find momentum is mass x velocity
Your parents are driving their car. They check the speedometer. What are they checking? Instantaneous speed (the speed at that moment)
Motion is a change in position.
A person walks 2 km in 30 min. How many km per hour is she walking? 2 km/30 min is 1 km per 15 min, but the question asks for km/ hour. There are 4 groups of 15 min in one hour. 4 x 1 = 4 km/ hour. Or there are 2 groups of 30 min in 1 hour. 2 x 2 km = 4 km/ hour.
If I do not know how to do any of the math I will ask for help, look at practice problems, etc….
Displacement includes both distance traveled from the starting point and direction.
True or false: When a car accelerates it changes speed. Technically false because acceleration includes changing speed and direction.
To find momentum you need to know mass and velocity
The formula to find speed is distance / time
A car travels 30 km in 20 min. How many km per hour is the car traveling? 90 KM/ H (Remember to change the minutes to hours. There are 3 groups of 20 minutes in 1 hour. 3 x 30= 90)
A bullet travels 300 meters in .20 seconds. What was its speed? 1500 m/second (it is going 300 meters in less than a second so in a whole second it would go more than 300 meters)
I ran the 100 meter dash in 14.5 seconds. What was my speed? 6.897 m/second?
A bus changes speed from 50km per hour to 80 km per hour in 20 seconds. What is it’s acceleration? 80 – 50 = 30 km change, 30km/ 20 seconds = 1.5km/hour
Five km north is a measure of displacement
Seven km is a measure of distance.
Inertia depends on mass
True of False: To do well on this test I must be able to read a graph showing velocity and a diagram of two moving options true
Where can I find a sample of a graph on velocity in the book
True of False : I will check into Miss Murray’s blog later this weekend for more study information. Yes, I will got to grade8learningcenter.wordpress.com for more information.
Popular Physical Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards