Forces 1
The greater the mass of an object,
A.the easier the object starts moving.
B.the greater its inertia.
C.the way you move
D.the more space it takes up.
B?
Attractive force existing between all objects with mass.
gravity?
A book is sitting on the dashboard of a car that is stopped at a traffic light. As the car starts to move forward, the book slides backward off the dashboard. Which law is this ?
Newton's First Law (the law of inertia)
What is the speed of an object that travels 60 meters in 4 seconds?
15m/s
The net force that does not equal zero that acts on an object.
unbalanced forces
An object will not change its motion unless a force acts on it.
Newton's first law?
Forces acting on an object that do not cause the object to move.
balanced forces?
Forces acting on an object that cause the object to move.
unbalanced forces?
opposes the direction of motion of object as it slides over a surface
Sliding force
Newton's second law of motion equations
Force = mass x acceleration
WHAT IS A FORCE?
a push or a pull
Measure of the amount of gravity on an object.
weight
Sum of all forces acting on an object.
net force?
When force of air resistance equals force of gravity
Terminal Velocity
Anything shot/thrown through the air is what?
Projectiles
Every action (force) in nature there is an equal and opposite reaction.
Newton's third law of motion?
Forces are measured in what ?
Newtons
_____ is a force that resists the sliding motion between two objects that are touching.
friction
As the amount of mass increases, the force of gravity between two objects _______.
Would increases?
symbol for force
N
Type of frictional force that acts on objects as they travel through the air.
air resistance force?
A force going to the right at 300 N, an opposite force going to the left at 500N, the net force, and direction are______.
200N
Net force acting on an object is 0N.
balanced forces
A skydiver with a mass of 70 kg accelerates to Earth at a rate of 9.8 m/s2 due to gravity. What is the force on the skydiver? Explain how you determined the answer and its units.
686 N?
There is NO MOTION. what force is it?
Balanced forces