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Newton's Laws
Types of Force
Vocabulary
More Vocabulary
Miscellaneous
100
Objects with greater mass have more what?
Inertia
100
What type of force causes an object to move in a circle?
centripetal force
100
An object that travels around another object in space is called what?
satellite
100
Air resistance is a type of what?
Friction
100
Why is the force of gravity between you and Earth greater than the force of gravity between you and your desk?
Earth has a larger mass
200
What is the equation for Newton's second law?
F = ma
200
When multiple forces acting on an object do not change an object's motion, what type of forces are those?
balanced forces
200
The product of mass and velocity gives an object's what?
Momentum
200
What is the overall force acting on an object after all the forces have been added together?
net force
200
Why does a person keep moving forward if their car stops suddenly?
because of inertia
300
Which of Newton's laws explains the way that rockets are able to lift off the ground?
Third law
300
What is the type of friction that acts on objects falling through the air?
air resistance
300
What is the amount of matter in an object?
Mass
300
What is an object that is thrown called?
Projectile
300
What is the role of gravity in satellite motion?
It causes the direction to change; it is the centripetal force
400
According to Newton's third law, when a person pushes on a wall, what does the wall do?
It pushes back with an equal force in the opposite direction
400
What type of friction acts on objects that are not moving
static friction
400
A push or pull is called a what?
Force
400
What is the tendency of an object to resist changes in motion?
Inertia
400
How do you calculate the net force if two forces are acting in the same direction?
add them
500
According to the law of conservation of momentum, what happens to the momentum when two objects collide in the absence of outside forces?
momentum is not lost
500
What is the force that one surface exerts on another when the two rub against each other?
Friction
500
What is it called when the only force acting on an object is gravity?
free fall
500
What is the force of gravity on a person or object near the surface of a planet?
Weight
500
What law states that any two objects in the universe attract one another?
law of universal gravitation