Forces
Gravity
Friction
Balanced and Unbalanced forces
Sir Isaac Newton
100
A force is...
What is a push or pull?
100
Who first coined the term 'gravity'
Who is Sir Isaac Newton
100
Friction is...
What is a force that opposes (resists) motion?
100
The difference between a unbalanced force and a balanced force is...
What is an unbalanced force has motion and an unbalanced motion has no motion.
100
He known for proposing the idea of..
What is gravity?
200
The SI unit used for force is...
What is a Newton?
200
The law of universal gravitation states .....
What is that every object attracts another object?
200
When showing an object in motion, static friction is represented using arrows that go in this direction...
What is opposite direction of the force?
200
Set up an equation and solve for the net force of the following: 25N and 35N <-- -->
What is 35N - 25N? <-- --> =10N <--
200
The gravitational pull is greater between 2 objects that...
What is have greater masses OR have small distances between them?
300
The direction and strength of a force can be represented by an __________.
What is an arrow?
300
The gravitational force between objects depends on these 2 factors...
What is mass and distance?
300
The two factors that affect friction are...
What is the amount of force applied and the type of surface (how hard/smooth the surfaces are)
300
The moon is held in orbit around Earth due to .....
What is an unbalanced force?
300
Dividing total distance traveled by the total time is how we calculate...
What is average speed?
400
Combining all forces acting on an object is called ....
What is net force?
400
Mass affects gravitational force by... Distance affects gravitational force by...
The larger the mass, the greater the gravitational force. The smaller the mass, the smaller the gravitational force. If distance increases, gravity decreases. If distance decreases, gravity increases.
400
Two types of kinetic friction exist, they are...
What is rolling kinetic friction and sliding kinetic friction?
400
the net force on an object when you combine a force of 10N north with a force of 5N south is..
What is 5N north?
400
To calculate acceleration, you need to know...
What is starting velocity, final velocity, and time it takes to change velocity?
500
To solve for net force equations we have to...
What is add forces going in the same direction OR subtract forces going in different directions?
500
Mass and Weight are often confused with one another. In reality though, they are really different. Why?
What is mass is the amount of matter that makes up an object, and weight is the amount of gravitational force acting on an object.
500
Three ways in which you can lessen the amount of friction?
What is adding a lubricant,
500
An unbalanced force can cause an object's motion to change by... (3 answers)
What is changing direction or speed, starting or stopping the motion?
500
Provide 3 examples of when friction can be helpful.
What is (VARY)
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