Newton's First law
If nothing acts on an object it will stay at...
Rest
Formula for Second Law Of Motion
F=MA
True or false: F=MA goes with Newton’s 3rd Law Of Motion
False
what are the 4 types of friction
static friction
sliding friction
fluid friction
rolling friction
Force is 3N and mass is 1kg what is the acceleration?
3m/s2
Why don’t objects just float away
Gravity
Which has more Inertia? Truck or Ant
Truck
Why don't action-reaction pairs cancel each other out?
Because they act on two different objects.
What would the difference be if you dropped an object on the moon and the same object on earth?
On the moon , the object fall slower and weight less because the Moon's gravity is weaker.
On Earth, it would fall faster because gravity is stronger.
The object's mass stays the same, but its weight changes.
Force is 100N and acceleration is 10m/s2 what is the mass
10kg
If you throw a shoe in outer space, how much force is needed to maintain constant motion in outer space?
0 newtons
In space there is no friction,so the shoe keeps moving without any extra force(Newton's first law).
What two variables is acceleration dependent on
Force and Mass
Someone weighing 500N sits on a floor. How much force does she exert on that floor
500N
What is the law of universal gravitation?
The law of universal gravitation states that all objects are attracted to each other by a gravitational force.
You have 999kg with a 10m/s2 what is the force.
9990N
Another word for the first Law Of Motion
Law of Inertia.
If you double the mass of an object while leaving the net force unchanged what is the result on the acceleration
Acceleration will be half
Give an example of how we use the third law of motion in our everyday life.
Walking
jumping
swimming
Give an example of unbalanced forces acting on an object.
Pulling a wagon by its handle is an unbalanced force that makes the wagon accelerate.
If two objects have the same force applied but different masses, which one will accelerate more and why?
When the same force is applied, a smaller mass results in a larger acceleration, while a larger mass results in a smaller acceleration.
Definition for the First Law Of Motion
An object at rest stays at rest and an object in motion stays in motion at constant speed and acted on by a net external force.
Definition for the Newton's Second Law Of Motion
The acceleration of an object is equal to the net force acting on the object divided by its mass.
Definition for the Third Law Of Motion
For every action there is an equal and opposite reaction
What is the difference between mass and weight?
Mass is the amount of matter in an object and stays the same everywhere.
Weight is the force of gravity on that mass and changes depending on gravity.
A 1675 kg car moves at constant velocity to the right.What is the net force?
0 . Because constant velocity means zero.