chapter 5 Flashcards
force
Force is a push or a pull that can make an object move, stop, or change direction.
weight
Weight is the measure of the force of gravity acting on an object.
center of mass
The center of mass is the point where an object’s mass is evenly balanced in all directions.
Newton (N)
A Newton (N) is the unit of force, and one Newton equals the force needed to make a 1 kg object accelerate at 1 m/s².
net force
Net force is the total force acting on an object after all the forces are combined.
Equilibrium
Equilibrium is when all the forces acting on an object are balanced, so the object is either at rest or moving at a constant speed.
- What is a force?
A force is a push or pull that can cause an object to move, stop, or change direction.
- How is it measured?
f = ma
- What is the difference between weight and mass?
Mass is the amount of matter in an object, while weight is the force of gravity pulling on that mass.
- How do you calculate weight?
Weight(W)=Mass(m)×Gravity(g)
Why is gravity important to weight?
Gravity is important to weight because weight is the force of gravity pulling on an object’s mass.
- What is the unit for weight, in physics?
The unit for weight in physics is the Newton (N).
- What is a “net force”?
A net force is the overall force acting on an object when all the individual forces are combined.
- What is equilibrium?
Equilibrium is when all the forces acting on an object are balanced, so the object does not accelerate and either stays still or moves at a constant speed.
