Newton's Laws
An object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an outside force.
What is Newton's First Law of Motion?
The force that pulls objects toward the Earth.
What is gravity?
The factor in an experiment that changed or altered to test the outcome.
What is independent variable?
The term used to measure force.
What are Newton's?
The formula for average speed.
What is average speed = distance/time OR a = d/t.
Which law explains the relationship between force, mass, and acceleration?
What is Newton's Second Law of Motion (F = ma)
The force that opposes the motion of an object sliding across a surface.
What is friction?
An object will remain at rest or in uniform motion unless acted upon by a force.
What is Newton's First Law of Motion?
A force that causes a change in motion because the forces acting on an object are not equal or opposite.
What is an unbalanced force?
The speed of an object in a specific direction.
What is velocity?
For every action, there is an equal and opposite reaction.
What is Newton's Third Law of Motion?
The force that acts between charged particles or objects.
What is electric force.
Two forces acting on an object that are equal in size and opposite in direction, resulting in no change in motion.
What are balanced forces?
The same or different forces - When you push down on the boat to jump off, the boat pushes back with an equal force in the opposite direction. This causes the boat to move in the opposite direction while you jump forward.
What is the same?
The speed of a car that travels 100 meters in 20 seconds.
What is 5 m/s?
If an astronaut pushes off from a spaceship, why does he move in the opposite direction?
What is Newton's Third Law of Motion - his action (push) creates an equal and opposite reaction (movement in the opposite direction).
A set of two forces that are equal in magnitude but opposite in direction.
What are force pairs?
A push or pull that can cause an object to change its motion.
What is a force?
The net force and direction of movement for the following...person 1 pushes a cart to the right with 40 N of force. Person 2 pushes that same cart to the left with a for of 10N.
What is 30 N of net force and to the right.
The increase or decrease in velocity (speed).
What is acceleration?
According to Newton's Second Law, if a car with a mass of 1,000 kg accelerates at 2 m/s2, what is the force acting on the car? (HINT: F = ma)
What is 2,000 N.
The force that occurs when two magnets attract or repel each other.
What is magnetic force?
The force of attraction that pulls objects toward the center of the Earth.
What is gravity?
If you push against a wall with your hands, the wall exerts an (blank) and (blank) force back on you, which you can feel as resistance.
What is equal and opposite?
True or False...the direction of acceleration is always in the direction of the net force.
What is true?