Force equals
mass x accelerration
A car is rolling down a ramp. If the angle of the ramp is increased to make the ramp steeper, the cart will...
accelerate faster
Happens when two objects are in contact with each other...
Friction
A push or a pull
Force
A physic student pushed a 50 kg load across the floor, accelerating it at a rate of 1.5 m/s2. How much force did she apply?
What is 75 N.
When you put a book on a table and the table pushes on the book.
What is Newton's 3rd Law.
Acceleration is equal to
Force/mass
A 10-N falling object encounters 4 N of air resistance. The net force on the object is
What is 6 N.
A force perpendicular to the surface
What is Normal Force?
Ability of an object to resist change of motion. An object at rest stays at rest.
Inertia
If a net horizontal force of 8.2 N is applied to a baby carriage whose mass is 11.5 kg what acceleration is produced?
What is 0.713 m/s2.
A person is pushed forward into their seatbelt when a car stops.
What is Newton's 1st Law.
The force of gravity on the earth is ...
9.8 Newtons
What do the arrows indicate in the picture?
The force
Always down and always pulls objects towards each other.
What is Gravitational force or the force of gravity.
The amount of matter in an object.
Mass
A 250 N force pulls on a box horizontally to the right. The box is moving at constant speed. What is the force of friction on the box?
What is 250 N to the left (-250 N).
A larger car takes more force to move.
What is Newton's 2nd Law.
As the mass of an object increases and the force stays constant, it's acceleration will _____.
decrease.
What direction will the box move and why?
To the right...the longer arrows indicates a larger force
Force due to a rope or string
What is Tension Force?
Total of all the forces on an object
Net Force
A person leans on a wall and the wall pushes back
What is Newton's 3rd Law.
A 5kg object is accelerating at a rate of 8 m/s2 . What is the force?
40 Newtons
The friction acting on an 12 kg object is 30 N, how much force is necessary to start this object into motion.
more than 30 N.
Any force that is not described by the more specific forces discussed in class
Applied force
Force pulling all objects towards each other
Gravitational Force or Force of Gravity.
You are in space on a plant that you have discovered because you love science soooooo much! You weigh yourself and discover that you weigh 60N. What is the gravitational strength if you have a mass of 65kg?
.92 N/kg
A brick sits on a table until you push on it
What is Newton's 1st law