# Syverson Physics Review

## 27 terms · These flashcards and other study methods will aid you in your test on Thursday. Please use this time to study and prepare for your test.

a push or a pull

Force (equation)

### Gravity

the force of attraction between two masses

### Friction

the force that resists motion between two surfaces that are pressed together

### Contact Force

when one object pushes or pulls another object by touching it, the first object is applying a contact force to the second

### Net Force

the overall force acting on an object when all of the forces are combined

### Balanced Force

when the net forces are zero; have the same effect as no force at all; cannot change speed or direction

### Unbalanced Force

can change motion; If one basketball player pushes with greater force, than the other player, the ball will move in the direction that player is pushing

### Inertia

the resistance of an object to change the speed or the direction of its motion

### Newton's First Law

states that objects at rest remain at rest, and objects in motion remain in motion with the same velocity unless acted upon by an outside (unbalanced) force

### Newton's Second Law

states that the acceleration of an object increases with increased force and decreases with increased mass. This law also states that the direction in which an object accelerates is the same as the direction of the force

### Newton's Third Law

states that every time one object exerts a force on another object, the second object exerts a force that is equal in size and opposite in direction back on the first object

### Speed

the measure of how fast something moves or the distance it moves in a given amount of time

### Velocity

a speed in a specific direction

### Acceleration

a measure of how quickly the velocity is changing.

### Momentum

a measure of mass in motion; the momentum of an object is the product of its mass and its velocity

### Conservation of Momentum

states that the total momentum of a system of objects does not change, as long as no outside forces are acting on that system

### Vf-Vi/T

Acceleration (Equation)

Speed (Equation)

### mv = mv

Momentum (Balanced Equation)

### mv

Momentum (Equation)

meters

### Standard Unit for Force

Newton or kg x m/s/s

kilogram or kg

Seconds

m/s

m/s/s