Phy 206

Front 1

An object's momentum ----- as it's mass increases.

Back 1

INCREASES

Front 2

An object starting from rest and undergoing a constant acceleration of 2 m/s will have a velocity of... What equation will be used for this problem?

Back 2

VELOCITY

v = a t

Front 3

According to Newton's laws, a planet in orbit about the sun is actually ------ toward the sun.

Back 3

ACCELERATING

Front 4

When an object orbits the sun, it's always accelerating toward the sun or else it would what?

Back 4

FLY OFF ON A TANGENT

Front 5

When dealing with acceleration, a planet in orbit is actually always accelerating toward the sun.

When dealing with velocity, a planet in orbit spends part of its orbit accelerating ---- the sun and then part accelerating ---- the sun.

Back 5

TOWARD AND FROM

Front 6

Newton's laws predict that a planet will move fastest when it is ---- to the sun and then sweep equal pie shaped areas about the in ---- incrememnts of time.

Back 6

CLOSEST, EQUAL

Front 7

The conservation of momentum requires that the momentum of an object only change when what.

Back 7

A FORCE IS ACTING UPON IT

Front 8

According to Newton's laws, the sun must always -----.

Back 8

BE ACCELERATING

Front 9

A 2 kg object has a velocity of 4 m/s toward the east. It has a momentum of... What equation would be used for this problem?

Back 9

MOMENTUM

p = m v

Front 10

An object thrown near and parallel to the earth's surface will travel -------.

Back 10

IN AN ARC

Front 11

A baseball player throws a ball straight up in the air and catches it in the exact same point when it comes down. WITHOUT AIR RESISTANCE, the ball will have the ---- speed as when it left the player.

Back 11

SAME

Front 12

A ball played throws a ball in the air and catches it at the same spot. WITH AIR RESISTANCE, the ball will have a ------- speed as when it left the player.

Back 12

SLOWER

Front 13

An object's force is just a particular type of -----

Back 13

FORCE

Front 14

A correct set of units for speed are ----.

Back 14

M/S

Front 15

Speed, s, of an object is a change in -----.

Back 15

DISTANCE

Front 16

The units m/s may represent...

Back 16

AN ACCELERATION

Front 17

A car traveled 300 miles in 6 hours to the east. The average speed of the car was... What would the equation used be?

Back 17

SPEED

s = change in distance/ change in time

Front 18

If a zero net force is exerted on a body, then the body may be moving in a ---- ---- or it may be ------.

Back 18

MAY BE MOVING IN A STRAIGHT LINE OR IT MAY BE MOTIONLESS

Front 19

An object has a weight of 40 N on the surface of a planet with an acceleration due to gravity of m/s. The mass is... What equation is used?

Back 19

FORCE

f = m a

Front 20

If body A exerts a force on body B, then body B may not --- ---- or it may change --- of motion.

Back 20

MAY NOT BE MOVING OR IT MAY CHANGE IT'S DIRECTION OF MOTION

Front 21

When the distance between the centers of two massive objects is decreased, the gravitational force between them -----.

Back 21

INCREASES

Front 22

Body A and Body B are the same distances from the earth. We know the force of the earth exerted on Body A is one half the force that it exerts on Body B. So, Body A must----- as Body B.

Back 22

HAVE HALF AS MUCH MASS

Front 23

The physial quantity most closesly identified with inertia is ----

Back 23

MOMENTUM

Front 24

If the mass of the earth were to increase by 4, then the acceleration due to earth's gravity would ---- by a factor of 4.

Back 24

DECREASE

Front 25

When the disttance between the two centers of two massive objects is changed by a factor of 6, the gravitational force between them changes by a factor of -----

Back 25

36

Front 26

A 5 kg object 3 meters above the earth has a potential energy of... What is the equation?

Back 26

POTENTIAL ENERGY

pe = m g h
g= 9.087 m/s^2

Front 27

The kinetic energy of a 5 kg object with a velocity of 10 m/s is... Equation/

Back 27

KINETIC ENERGY

ke = 1/2mv^2

Front 28

When the distance between two charged particels is decreased by a factor of 2, then the electirc force between them ---- by a factor of 4.

Back 28

INCREASES BY FACTOR OF 4

Front 29

The ultraviolet catastrophe refers to the inability of physics to correctly predict ---- at the beginning of the 20th century.

Back 29

LIGHT EMITTED FROM HOT OBJECTS

Front 30

According to Kepler's laws, a planet in orbit about the sun moves ---- when it's closest to then sun.

Back 30

FASTEST

Front 31

According to Kepler's Laws, a planet in an orbital period about the sun of 30 years must be grater than 9 AU. What equation is used?

Back 31

P^2 = D^3

30^2 = 900 = D^3

9 SQUARED = 81
9 CUBED = 729

Must be higher than 9

Front 32

True or false?

The electromagnetic force is responsible for holding nuclei together.

Back 32

FALSE

Front 33

True or false?

Aristotle believed that heavenly motion was fundamentally the same as earthly motion.

Back 33

FALSE

Front 34

True or false?

The ultraviolet catastrophe can be resolved by employing relatvitiy.

Back 34

FALSE

Front 35

First law of motion states that an object continues its present straight line motion unless acted upon by a --- --- ----.

Back 35

NON ZERO FORCE

Front 36

Second law states that an acceleration, a, of an object is equal to net force. What is the equation of net force?

Back 36

F = M A

A = F/M

Front 37

What are some units of acceleration?

Back 37

M/S^2

Mass- KG

KG M/S^2 IS A NEWTON

Front 38

Speed, s, is a change in distance, d, that object moves in given time, t. What are some units of speed?

Back 38

S = D/T

MILE/HOUR

Front 39

What is the equation for acceleration?

Back 39

A= V/T

Front 40

The thrid law states that for every action that is an ---- and ---- reaction.

Back 40

EQUAL AND OPPPOSITE

Front 41

Momentum can be thought of as a numberical measure of ----.

Back 41

INERTIA

Front 42

The gravitational force is the magnitutde of force of attraction, Fg, between two bodies with masses, m1 and m2, are seperated by distance, r.. What is g equal to?

Back 42

6.6 X 10

Front 43

When gravitational force is between a planet and a small obkect, the force is the ---- of the object.

Back 43

WEIGHT

Front 44

Linear momentum is a mathematical formulation of Newton's ---- ---.

Back 44

FIRST LAW

Front 45

The only time momentum can change is when it's acted upon by a -----.

Back 45

NON ZERO NET FORCE

Front 46

Angular momentum is conserved in the absence of a non-zero external force. What is the equation?

Back 46

L = MVR

ANGULAR MOMENTUM= L
MASS= M
VELOCTIY= V
DISTANCE= R