Type of friction
Name the type of friction. You are pushing against a wall and it won't move.
Static Friction
The unit used to label force is called ________________.
Newtons
If the net force equals zero, is it balanced or unbalanced?
Balanced
True or False. Only some matter experiences gravity.
How do you measure speed ?
Distance divided by time
You are sliding your desk across the classroom and it creates a loud noise. You don't want it to be so loud the next time. What could you do so that it's easier to move the desk? What type of friction is this?
Add wheels to the desk. Rolling Friction
What is a force
A push or pull on an object
You are having a tug of war with your puppy. You are pulling the rope with a force of 37 N Right and your puppy is pulling the rope at 37 N Left. What is the net force. (Remember the direction.) Is it balanced or unbalanced?
O N (No direction is needed.) Balanced
The Law of Universal Gravitation states that the size of the force depends on the ________________ of objects and the ___________________ between them.
mass distance
If you are going 70 miles south at 35 MPH than how long will it take you to get there ?
2 hours
Name the type of friction. Sledding down a hill
Sliding friction
What is the force that keeps people on Earth
Gravity
The Indigo and the Navy Teams are having a tug of war. The Navy Team pulls 25 N left and the Indigo Team pulls 47 N right. What is the net force? (Remember to give the direction also.) Is it balanced or unbalanced?
22N Right Unbalanced
True or False. If objects move farther apart their gravitational force is decreased.
True
If you jog for 1 hour and travel 10 km, 10 km/h describes your _____. a. Average speed b. Velocity c. Displacement
The answer is A
Name the type of friction. You are roller skating down the street.
Rolling friction
Friction is a force that acts _____________ the motion of an object. Choices: a) against b) in the same direction as
against
If there is movement, is the force balanced or unbalanced?
unbalanced
Why are we affected by the gravitational force of the Earth and not the gravitational force of a pencil?
The Earth has a far larger mass than a pencil and the more the mass the more the gravity
In our lab average speed, distance was listed on the a. x-axis b. y-axis c. z-axis
The answer is B
Name the type of friction. Walking on a wet floor.
Fluid friction
All forces have ______________ and _________.
Size and Direction
You and your brother are moving a couch for your mom. You move the couch at 65 N Right and your brother moves the couch at 60 N Right. What is the net force? (Remember to include a direction in your answer.) Is the net force balanced or unbalanced?
125 N Right Unbalanced
A force of attraction between objects that is due to their masses is called ______________________.
gravity
If a ball traveled at the average speed of 4m/s, how far would it travel in 20 seconds?
80 M