Terms in this set (55)
inertia varies depending on ___________
Newton's first law of motion is also called the law of _________
The upward force on an object falling through the air is ________
Newton's second law of motion
the relationship among mass, force, and acceleration is explained by ___________
a feather will fall through the air more slowly than a brick because of __________
For any object the greater the force that's applied to it, the greater its ________ will be.
Masses and the distance between them
The size of the gravitational force between two objects depends on their ___________.
Newton's third law of motion
The statement "to every action there is an equal and opposite reaction" is _______.
When the drag force on an object falling through the air equals the force of gravity, the object has reached __________.
The force you have to overcome to start an object moving is _______.
Isaac Newton performed the ball drop experiment from the leaning tower of Pisa to demonstrate different masses did not affect gravitational acceleration.
Terminal velocity of a skydiver is 200 miles per hour
Issac Newton is known as the father of Phsyics, he worked in the 1600's
A balanced force causes a change in motion
Force is a push or pull that usually starts something in motion or changes the direction of motion
Unit for weight is kilogram
True horizontal motion must be at a 90 degree angle.
Inertia is the tendency of things to resist change in motion
Weight and momentum are both forces
When I am standing still, my acceleration downward due to gravity is 9.8 meters per second per second.
If you ride your bicycle down a straight road for 500 m then turn around and ride back, your distance is ___________ your displacement
A single point on a distance-time graph tells the ___________.
A merry-go-round horse moves at a constant speed but at a changing _______________
The unit most commonly used for speed in the Physics lab is miles per hour.
Lines drawn to help describe two different forces acting upon a motion can be called Vectors.
Could this be a unit for acceleration- miles/ hour/ second
When speed decreases from point A to point B, it is known as develositiphication
Acceleration can never be a negative
Reading a speedometer on a car gives you average speed of your trip
Average speed equals total distance divided by total time
Instantaneous speed can be found anywhere throughout a race
Dimensional analysis (conversions) can be used to change miles into kilometers
Distance traveled by time describes acceleration
a bicyclist moving in a straight line at a constant speed
Which of the following is NOT an example of accelerated motion?
a. a boulder falling off of a cliff in a straight path
b. an airplane taking off down a straight runway
c. a bicyclist moving in a straight line at constant speed
d. a ball being thrown straight up
the rate at which an object's velocity changes is called its ______.
speed and time
to describe velocity you need to know ________.
When you graph the motion of an object, you put ____________ on the horizontal axis and ____________ on the vertical axis.
On a speed-time graph, a horizontal line shows the change in speed is ___________.
The distance traveled divided by the time taken to travel the distance is ________.
Energy does not have to involve motion.
Energy is the ability to cause change.
Energy is measured in joules
When you ride a playground swing, your potential energy is greatest at the highest point
As mass decreases, kinetic energy increases
Lowering an object decreases its potential energy
In order for work to be done on a object, the object must move
Power equals work multiplied by time
Energy cannot be changed from one variety to another
A stretched bow and a compressed rubber ball both posses elastic potential energy
The kinetic energy of an object increases as its __________ increases.
does not affect
Increasing the speed of an object ___________ its potential energy
The SI unit for energy is the _________
Which of the following devices does not make use of electrical energy?
a. upright piano
the unit of power is the _____
Energy is measured in joules
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