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Fuzzy Friction
Speed it Up
May the Force be With You
Which Law is It?
PSSA Science
100
Pushing a desk along the floor represents this type of friction.
What is Sliding Friction
100
A place or object used for comparison
What is Reference point
100
A push or a pull on a object.
What is Force
100
Newton's 1st law is often called the of. . .
Inertia
100
Name 3 types of rocks
What is igneous, sedimentary, metamorphic?
200
Most winter sports rely on this type of friction (name 2)
What is Sliding Friction (Hockey Sledding Skiing)
200
The formula used for speed.
Speed= distance/time
200
Combination of all forces acting on an object.
Net Force
200
Pulling the table cloth out from under dishes, represents which of Newton's laws.
1st, Inertia
200
The main source of energy on the Earth.
What is the sun?
300
Airplanes flying through the air have which type of friction?
What is Fluid Friction
300
How is velocity different from speed?
Velocity also tells direction.
300
The net force on an object if there is an 8 N force pushing to the right and a 12 N force pushing to the left.
What is a net force of 4 N to the left?
300
The kickback of a rifle represents which of Newton's laws?
3rd, action/reaction
300
Layer of the atmosphere that protects us from the sun's harmful rays.
What is the ozone layer?
400
Friction between two objects that are not moving is called. . .
What is Static Friction
400
What is speeding up, slowing down, or changing direction?
Acceleration
400
2 Newtons of force being applied to an object from each side means this.
What is the forces are balanced and it will not move?
400
According to Newton's 2nd law, if force is constant, as mass increases, acceleration __________________
Decreases
400
Maximum velocity of a falling object
What is terminal velocity?
500
Give 3 examples of rolling friction.
Roller skates, skateboards, bikes, cars
500
A car traveled 250 meters in 50 seconds - what is its speed?
250/50 = 5 m/s
500
When an object has a 5 N force exerted on it to the right and a 3 N force exerted on it to the left.
What is a net force of 2 N to the right?
500
If a baseball weighs 2 Kg and is accelerating at 4 m/s. What is its momentum?
(2)(4) = 8Kg/m/s
500
Elements in the following compound: NaHCO
What is Sodium, Hydrogen, Carbon, and Oxygen?