Force and Motion 1
What is a force?
A push or a pull
This is a measure of how fast something moves through a distance in a given amount of time.
What is speed?
What unit is used to measure speed?
m/s
What unit is used to measure acceleration?
m/s2
What is the unit for force?
Newtons (N)
What is an engineer?
A person that uses Science to build a product to solve a particular problem
Information that supports or refutes a claim.
What is evidence?
What formula would you used to solve for force?
mass x acceleration
What is Newton's Third Law of Motion?
the Law of Motion that states for every action there is an equal and opposite reaction....
What happens if there is no force acting upon an object?
It will continue to move at the same speed in the same direction.
What would happen if you threw a ball in the air in outer space?
It will travel in a straight line forever
The limitations of a project are called ________, and the goals and desired features are called _________.
Constraints
Criteria
Name two common SI units for mass.
Grams and Kilograms
Newton's First Law of Motion states that an objects...
motion will remain constant unless acted upon by an outside force.
The Si unit for Force is.....
What is a Newton?
To solve for acceleration what two things do you need to know?
The objects force and mass
What happens when a bowling ball and tennis ball collide?
Explain: the force the balls
the motion relative to the mass
Each will apply an equal force, but the object with less mass will have greater motion.
A change in a moving object's speed or direction is..
What is Acceleration?
When graphing a car's speed, what is the independent and dependent variable?
Independent = time
Dependent = distance
What type of Scientific data does a line graph display, and is the
x - axis the dependent or independent variable?
A line graph shows change over time and the x - axis is the independent variable.
What is the relationship between speed and kinetic energy?
The greater the speed of an object the greater it's kinetic energy.
How do you find a cars stopping distance?
It's the cars reaction distance plus braking distance
A force that acts to oppose motion...
What is Friction or Inertia
A combined force that causes something to move...
What is an Unbalanced Forces?
When applying a constant force to one object, what happens to the acceleration if the force stays the same and you double the mass of the object?
Explain by telling how it relates to one object
The acceleration would be 1/2 of the one object.