This word means a push or pull and causes motion or a change in direction.
What is FORCE?
100
This is when the forces on an object are equal in size and opposite in direction and there is no change in motion.
-----> <------
20N 20S
What is BALANCED.
100
This is when the force on an object are not equal in size and is only pushing in one direction which causes a change in motion.
--------> <----
20N 10N
What is UNBALANCED
100
This is the result of 2 unbalanced forces.
What is NET FORCE.
100
This is the force that opposes the motion of an object.
What is FRICTION.
200
This is when two solid surfaces move across each other.
What is SLIDING.
200
This is when an object rolls over a surface.
What is ROLLING.
200
This is when an object moves through a fluid, liquid, or gas.
What is FLUID.
200
This is the force exerted by every object in the universe on every other object. It is influenced by the mass and distance between.
What is GRAVITY.
200
This is when the Earth's gravity pulls you toward the ground @ 9.8 m/s. The strength of this pull depends on what?
What is GRAVITATIONAL PULL. It depends on the mass and distance between them.
300
This word means the increase of velocity that an object will reqch in a free fall? What do we use to calculate net force?
What is TERMINAL VELOCITY. F= M x A.
300
The difference between weight and mass and how to measure them.
What is
weight- the amount of gravitational pull on an object
triple beam balance (g or kg)
mass- how much matter in an object
spring scale in Newtons
300
These are the 3 laws that help explain rest, constant motion and accelearated motion.
What is Newton's Laws of Motion
300
This is the first of Newton's Laws of motion.
What is that an object at rest will stay at rest, or stay in motion at a constant veolicty unless acted upon by an outside force.
300
This is the second law of Newton's laws of motion.
What is acceleration of an object in the direction of the net force applied to it.
F= M x A (mass times acceleration)
400
This is the 3rd of Newton's laws of Motion.
What is when an object exerts a force on another object, the second object exerts an equal and opposite force.
400
This is an example of when you drive into water or when a feather falls in the air.
What is FLUID.
400
This is an example of when there is a car tire on the road.
What is ROLLING. (weakest type of friction)
400
This is an example of a chair moving across a floor or a sliding glass door.
What is SLIDING.
400
You must show these three things in all of your word problems.
What are
1. formula used
2. work/calculations
3. units
500
Solve this problem:
---------> <---------
30N 30N
This is an example of what?
What is 0 net force.
Balanced.
500
Solve this problem:
-----------> <---------------
40N 70N
This is an example of what?
What is
30n Net force
unbalanced
500
Solve this problem.
----------> ------------>
25N 25N
What is 40 net force.
500
What is the formula to find the velocity of an object?
Velocity= Distance/time
500
Whath is the formula for finding the acceleration of an object?