Force
Types of Friction
Vocabulary Potpourri
The Gravity of the Situation
The Randomness of Science
100
A push or pull is what describes this.
What is the definition of force?
100
This friction occurs when you swim in the ocean.
What is fluid friction?
100
The SI unit used to measure the strength of a force.
What is a Newton?
100
The greater an object's mass, this happens to the force of gravity acting upon that object.
What is it becomes greater, more, increases?
100
This was the scientist who determined that any two objects in the universe attract each other. (the law of universal gravitation)
Who is Newton?
200
An arrow shows these two things about force.
What is used to represent the direction and strength of a force?
200
This friction exists between the wheels and the ground when you skateboard at the skate park.
What is rolling friction?
200
The total of all forces acting upon an object.
What is net force?
200
As distance between objects decreases, the amount of gravitational force between them does this.
What is increases?
200
These two types of friction occur when you ride a bike through a puddle.
What is rolling and fluid friction?
300
If an object is going to move, it's net force is... a) 0 N b) Greater than 0 N c) Less than 0 N
What is b, greater than 0 N?
300
This friction is when you try to start a fire by rubbing two sticks together.
What is sliding friction?
300
The amount of matter in an object.
What is mass?
300
This is the force that keeps the planets in an orbit around the sun.
What is gravity?
300
When the only force acting on an object is gravity, the object is said to be in this.
What is a free fall?
400
An unbalanced force will cause an object to
What is accelerate or move?
400
This friction occurs when you push an elephant and it doesn't move.
What is static friction?
400
This is measured when gravity pulls down on an object.
What is weight?
400
These are the two factors that affect the gravitational attraction between objects.
What is mass and distance?
400
As distance increases between objects, this happens to gravitational force.
What is decreases?
500
This force will not change an object's motion.
What is a balanced force?
500
The two factors that affect the force of friction are...
What is types of surfaces involved and how hard the surfaces are pushed together?
500
This is reached when the force of air resistance equals the weight of the object.
What is terminal velocity?
500
During a free fall, how does the mass of an object affect its acceleration?
What is there is no affect on its acceleration?
500
When you stand on a scale at the doctor's office the number displayed depicts this.
What is Earth's gravitational force?
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