Newton's Laws And Momentum

Question 1

A quantity defined as the product of the mass and velocity of an object.

Answer 1

Momentum

Question 2

An object’s change in position relative to a reference point.

Answer 2

Motion

Question 3

The rate at which velocity changes over time. An object does this when it changes speed, direction, or both change.

Answer 3

Acceleration

Question 4

The speed of an object in a particular direction.

Answer 4

Velocity

Question 5

The tendency of an object to resist being moved or if the object is moving, to resist a change in speed or direction until an outside force acts on the object.

Answer 5

Inertia

Question 6

A force of attraction between objects that is due to their masses and that decreases as distance between the objects increases.

Answer 6

Gravity

Question 7

An object at rest remains at rest, and an object in motion remains in motion at a constant speed and in a straight line unless acted in by an unbalanced force.

Answer 7

Newton’s First Law

Question 8

The acceleration of an object depends on the mass of the object and the amount of force applied,

Answer 8

Newton’s Second Law

Question 9

Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first.

Answer 9

Newton’s Third Law

Question 10

An action exerted on a body in order to change the body’s state if roast or motion.

Answer 10

Force

Question 11

An object that is not moving is said to be at what?

Answer 11

Rest

Question 12

What makes it difficult to observe Newton’s first law on the motion of everyday objects?

Answer 12

Friction

Question 13

Newton’s first law of motion is sometimes called what?

Answer 13

Law of inertia

Question 14

An object with …… mass has less inertia than an object with …… mass

Answer 14

Less, more

Question 15

It is easier to change the motion of what kind of object?

Answer 15

An object with less mass

Question 16

The acceleration of an object increases as its mass …… and vice versa.

Answer 16

Decreases

Question 17

An object’s acceleration increases as the force exerted on it …… and vice versa.

Answer 17

Increases

Question 18

The acceleration of an object is always in the same what?

Answer 18

Same direction as the force exerted on it

Question 19

All forces act in what?

Answer 19

Pairs (action/reaction pairs)

Question 20

If a force is exerted, another force is what?

Answer 20

Equal in force and opposite in direction

Question 21

What does momentum depend on?

Answer 21

Mass and velocity

Question 22

The more momentum an object has, then what?

Answer 22

The harder it is to stop the object or change its direction

Question 23

What is the formula for momentum and what does each letter stand for?

Answer 23

p= m x v (p is momentum, m is mass, v is velocity)

Question 24

What states that anytime that objects collide, the total amount of momentum stays the same?

Answer 24

The law of conservation of momentum

Question 25

When the mass of 2 objects stick together after colliding, the combined objects move in the direction of the object that has what?

Answer 25

The greater momentum before the collision

Question 26

When the mass of two different objects collide after combining, the objects have ......that differs from the .....of either object before the collision?

Answer 26

Velocity

Question 27

In collisions where objects bounce off, the momentum is usually what?

Answer 27

Transferred from what object to another's which causes the objects to move at different speeds in different directions (total amount of momentum stays the same)