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17 questions
Force is.....
The combining of forces when two or more forces act on an object
the push or pull that one object exerts on another
forces that are equal in size and opposite in direction
forces that are not equal in size and opposite in direction
Net force is.....
The combining of forces when two or more forces act on an object
the push or pull that one object exerts on another
forces that are equal in size and opposite in direction
forces that are not equal in size and opposite in direction
Unbalances forces are.....
The combining of forces when two or more forces act on an object
the push or pull that one object exerts on another
forces that are equal in size and opposite in direction
forces that are not equal in size and opposite in direction
Balances forces are.....
The combining of forces when two or more forces act on an object
the push or pull that one object exerts on another
forces that are equal in size and opposite in direction
forces that are not equal in size and opposite in direction
Forces can cause a change in an object's motion
True
False
What kinds of forces change an object's motion?
Friction
Air resistance
Gravity
All of the above
What factors does friction depend on?
The roughness of the surface
The greater the force pushing the two objects together
The greater the surface area of the two objects touching
all of the above
Match the following
Law of Conservation of Momentum | An object will move at constant velocity until a net force acts on it | ||
Newton's 3rd Law | A net force acting on an object causes the object to accelerate in the direction of the net force | ||
Newton's 2nd Law | Every action as an equal and opposite reaction | ||
Newton's 1st Law | All moving objects have momentum. Momentum is transferred between objects in a collision |
Match the following types of frication
Static Friction | Forces between two surfaces that are NOT moving past each other | ||
Sliding Friction | Force between two surfaces that are sliding past each other | ||
Rolling Friction | Force between a rolling object and the surface it rolls on |
Newton's 1st law is also known as the Law of (a)
The tendency of an object to resist a change in motion is called...?
friction
air resistance
inertia
gravity
Air resistance can be determined by.....
Speed
Size
Shape
All of the above
The Law of Universal Gravitation is
any two masses exert an attractive force on each other
the force that causes all falling objects to have an acceleration of 9.8 m/s2
the force of gravity
The law of universal gravitation depends on what 2 things?
mass
velocity
distance
acceleration
Is there any acceleration in terminal velocity?
Yes
No
(a) is the amount of matter in an object
The rougher the surface, the greater the friction
The greater the force pushing the two objects together, the greater the friction
The greater the surface area of the two objects touching, the greater the friction
speed
size
shape
Net force
balanced forces
unbalanced forces
static friction
sliding friction
rolling friciton
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