Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
|
What is the definition of motion? |
A change in the position of an object when compared to a reference point |
|
|
What is a reference point? |
A reference point is the background which motion is measured against |
|
|
What does newtons first law of motion state?
|
And object in motion will stay in motion and object at rest will remain at rest they will do so unless acted upon by an unbalanced force
|
|
|
What is a balanced force?
|
Balanced forces are forces pushing or pulling on in object and that are equal in strength sometimes they act in different directions they are measured in newtons
|
|
|
What is a unbalanced force?
|
Unbalanced forces are forces pushing or pulling on an object and that are not equal in strength not the same near measured in newtons
|
|
|
What does newtons second law of motion state
|
Force is equal to mass x acceleration |
|
|
What does newtons third law of motion state
|
For every action there is an equal and opposite reaction
|
|
|
Newton is famous for inventing which scientific instrument
|
He invented the reflecting telescope
|
|
|
What is the name of the measurement unit used for force
|
Newtons
|
|
|
What is the difference between mass and weight
|
Mass is a measure of the amount of matter in an object
Weight is how gravity affects the mass of an object on earth |
|
|
What is friction
|
Friction is a force that opposes motion the force acts in the opposite direction to the way an object wants to move
|
|
|
What is static friction
|
Friction that exists between a stationary object and the surface on which its resting
|
|
|
When using a spring scale which units measured them on a force
|
Newtons
|
|
|
What is acceleration
|
It is the rate at which an object changed its velocity
|
|
|
What is deceleration
|
It is the rate at which an object slows down
|
|
|
What is velocity
|
It is a measure of speed and direction
|
|
|
What is an independent variable in an experiment
|
It is something that you change on purpose
|
|
|
What is a dependent variable in an experiment
|
It is whatever you are measuring
|
