Newton's 1st law
What does Newton's 1st law state?
what is an object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by an unbalanced force.
What is the formula associated with Newton’s 2nd Law?
what is Force equals mass times acceleration, or F=ma
What does Newton’s 3rd Law state about forces?
what is for every action, there is an equal and opposite reaction.
What is a unbalanced force?
what is s force that causes a change in an object's motion because the net force is not zero
What are balanced forces?
what is Forces that cancel each other out, resulting in no change in motion.
What is inertia?
what is inertia is the tendency of an object to resist changes in its motion.
If you apply the same force to two objects with different masses, which will accelerate more?
what is The object with less mass will accelerate more.
Do action and reaction forces act on the same object?
what is no, they act on different objects.
What happens to an object when unbalanced forces act on it?
what is it accelerates (changes speed or direction).
What happens to an object when balanced forces act on it?
What is it stays still or moves at a constant speed.
How does Newton’s 1st law explain why passengers lurch forward in a car when it suddenly stops?
what is passengers continue moving forward due to inertia because their bodies want to stay in motion even though the car stops.
What happens to acceleration if the mass of an object increases but the force remains the same?
what is The acceleration decreases.
Are the magnitudes of action and reaction forces equal?
what is yes.
Can unbalanced forces act on an object at rest?
what is yes, they can cause it to start moving.
What is the net force when forces are balanced?
What is zero.
Does Newton’s 1st law apply in outer space where there is little friction?
what is yes, objects will continue moving in a straight line at constant speed unless a force acts on them
What happens to acceleration if both force and mass increase proportionally?
what is Acceleration stays the same.
Are the directions of action and reaction forces the same?
what is no, they are opposite.
How do unbalanced forces relate to acceleration?
What is they cause acceleration in the direction of the net force.
Can balanced forces act on a moving object?
what is yes, they allow the object to continue moving at constant velocity.
What role does friction play in Newton’s 1st law on Earth?
what is Friction is an unbalanced force that often stops moving objects, changing their motion.
What unit is force measured in?
what is newton's (N).
Can action and reaction forces cancel out? Why or why not?
what is No, because they act on different objects.
: What is the net force when forces are unbalanced?
what is the net force is greater than zero.
Why don’t balanced forces cause acceleration?
What is because the forces cancel each other out.