Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
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

Force and Motion

Force and Motion Test Review

QuestionAnswer
What is velocity? Speed + Direction
How do unbalanced forces affect the motion of an object? Objects will speed up, slow down, or change direction if unbalanced forces are acting on them.
There are 4 wagons. Each one has a different mass. If students pull the wagons with the same amount of force, which wagon will move the fastest? The one with the least amount of mass
Which of the following is an example of velocity? A. 100 m/s B. 100 m/s2 C. !00 m/s east D 100 m C
Think back to the video of the skydiver that we watched in class. During which parts of the fall were the forces balanced on the skydiver? When the forces of gravity and air resistance were equal and opposite (Balanced)
What is the net force on an object that has balanced forces acting on it? 0 Newtons
What unit is used to measure force? Newtons (N)
A car travels 40 miles in 30 minutes. What is the speed of the car in miles per hour? 80 mph
What is the difference between speed and velocity? Speed only tells you how fast something is moving. Velocity tells you speed and also gives you the direction of travel.
On a speed - time graph, what does a flat line represent? Constant Speed
On a speed - time graph what does a upwards slanted line represent? Acceleration - speeding up
On a speed - time graph, what does a line slanted down towards the x axis represent? Acceleration - slowing down
On a distance (position) - time graph what does a flat line represent? An object that is not moving
On a distance - time graph, what does a straight slanted line represent? Constant speed
On a distance - time graph, what does a line slanted down towards the x axis represent? Return to starting point
On a distance - time graph, what does the y-intercept represent? Where the object starts moving
What is acceleration? A change in velocity
How can you tell if an object is accelerating? If it is speeding up, slowing down, or changing direction it is accelerating
How is acceleration represented on a distance-time graph? A curved line (upwards for speeding up, downwards for slowing down)
What is a force? A push or a pull
What is the relationship between slope and speed? A steeper slope represents a faster speed
How do you calculate net force? If the forces are going in the same direction you add them, if they are going in opposite directions you subtract
What subatomic particle identifies an atom? proton
When looking at a bohr model of an atom, how do you determine the number of valence electrons? You count the electrons in the outer most shell
If 2 atoms are in the same period, what do they have in common? They have the same number of energy levels (shells) for their electrons
What determines the reactivity of an atom? The number of valence electrons
According to the law of conservation of mass, how does the mass of the reactants compare to the mass of the products? They are the same
Atoms in the same _______________ have similar properties. group/family
Created by: hgorman