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19 Cards in this Set

  • Front
  • Back
Newton's first law of motion is also called the law of
The statement "to every action there is an equal and opposite reaction" is
Newton's Third Law
The law that states that the unbalanced force acting on an object equals the object's mass times its acceleration is
Newton's Second Law
Which of the following best illustrates balanced forces?
a crash between a large truck and train
forces acting on a object cause the object to accelerate
Sally sits on a rock. Her weight is an action force. Describe its reaction force/opposite force.
The rock reacts by pushing force upwards.
Friction is a force that __________ motion between two surfaces that are touching each other.
At the same speed, a bowling ball is harder to stop than a soccer ball because the bowling ball has a greater
mass force
Why is your weight less on the Moon than on Earth, but your mass is the same?
Because the earth has more gravitional force
The size of gravitational force between two objects depends on their ________ and ___________.
mass and weight
The law that states that every object maintains constant velocity unless actied on by an unbalanced force is
Newton's first law
A tug-of-war that results in one team pulling the other across the line is an example of ___________ forces.
Balanced and Unbalanced
An object in motioin at a constant velocity will change its motion only if a(n) _______________ force acts on it.
The law that states that for every action force there is an equal and opposite reaction force is
Newton's Law of Motion
The ____________ velocity is the highest velocity that will be reached by a falling object.
The greatest gravitational force would occur between
The Moon and the Earth
When the forces acting on an object are __________ the net force is zero.
When objects are moved further apart from each other, the force of gravity _____________________.
According to Newton's second law of motion, a larger force acting on an object causes a greater ________________ of the object.