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

Forces & Motion

7th Grade Science Test Questions

QuestionAnswer
The formula for Average Speed is Average Speed = Distance/Time
Arturo ran a 3,000-meter race. His running time from start to finish was 10 minutes. What was Arturo’s average speed? 300 m/s
Which is most likely needed when describing the change in position of an object? A. initial speed B. direction change C. reference point D. constant rate C. reference point
Explain why a car that is rolling on a level surface will eventually come to a stop? (not breaks) Friction
Two girls are pulling on opposite ends of a thick rope. Both girls pull on the rope with the same force but in opposite directions. This is an example of a __________________ force. Balanced
Two unequal forces act in opposite directions on a moving object. This is an example of a __________________ force. Unbalanced
Two students pull on a rope with 100 N in opposite directions. If the student on the left increased her force to 125 N, the rope would most likely go from being motionless to left acceleration.
When riding a roller coaster, an electric motor pulls the roller coaster to the top of the first hill. What force pulls the roller coaster down the hill? gravity
The force that prevents a ball rolling on the ground from continuing on its path forever is: friction
Which of the following changes when an unbalanced force acts on an object? motion
If an object has a mass of 50 kg and is accelerating at 2m/s/s, what is the force it will exert? 100N
The formula for Force is Force = Mass x Acceleration
John wants to build a racetrack that will allow his toy cars to travel fast when force is applied. Which material should he use? Plastic
A magnet is placed near a pile of steel paper clips. Which will most likely occur? The magnet will provide an unbalanced force, pulling the paper clips toward it.
Created by: MrsCharity
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