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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 objects mass the __________ the force of gravity acts upon that object.
What is greater, more?
100
Was the scientist who came up with the law of universal gravitation (p. 41).
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 __________.
What is increases?
200
The object in space that sucks all of the gravity around it into itself, including light.
What is a black hole?
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
Is the force that keeps the planets in an orbit around the sun.
What is gravity?
300
The type of friction that allows planes and birds to fly.
What is fluid friction?
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
The two factors that affect the gravitational attraction between objects are:
What is mass and distance?
400
As distance increases between objects, gravitational force (hint draw some arrows)
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
States that the force of gravity acts between all objects in the universe.
What is the law of universal gravitation?
500
The law of universal gravitation (p. 41) states what?
What is that gravity acts between all objects in the universe that have mass?
500
When you stand on a scale at the doctor's office the number displayed depicts the ____________that the Earth is exerting on you/
What is gravitational force?