science final

Question 1

what was the average speed of the egg drop capsules that did not effectively protect the raw eggs from the roof drop?

Answer 1

17 fps

Question 2

what are the three major things you have to include in your go-kart written work to get full credit

Answer 2

measurements, how you made it (written), speed (start, curve, straight, ending)

Question 3

what are 2 ways you gokart could be disqualified during inspection?

Answer 3

too long, over 48 inches, use leaf blowers

Question 4

energy is the ability to cause

Answer 4

change

Question 5

a bowling ball striking the pins is a good example of what type of energy

Answer 5

kinetic

Question 6

which is not a form of potential energy

Answer 6

thermal

Question 7

the total energy of an object or group of objects due to large scale motions and interactions is called

Answer 7

mechanical energy

Question 8

which type of energy is the “waste energy” generated when energy is used

Answer 8

thermal energy

Question 9

which renewable energy source is most likely to produce pollutants when used

Answer 9

biomas

Question 10

which energy transformation occurs when brakes are used on a bicycle

Answer 10

kinetic to thermal

Question 11

which type of energy is due to the motion of particles within an object

Answer 11

thermal

Question 12

before you drop a ball, what type of energy is present

Answer 12

potential

Question 13

when you stretch a rubber band, you are storing another form of potential energy called

Answer 13

elastic

Question 14

which is an example of a wheel and avle

Answer 14

a screw driver

Question 15

what is a good example of a second class lever

Answer 15

wheelbarrow

Question 16

the point at which a lever pivots is known as a

Answer 16

fulcrum

Question 17

the mechanical advantage of a pulley system can be calculated by the

Answer 17

number of sections of the rope pulling up on the object

Question 18

what is the mechanical advantage of an inclined plane

Answer 18

length divided by height

Question 19

solve for work

Answer 19

(work = force x distance) w = fd

Question 20

what type of force is a push or a pull on one object by another that is touching it

Answer 20

contact force

Question 21

what do we call the combination of all forces acting on an object

Answer 21

net force

Question 22

what do scientists call the gravitational force exerted on an object

Answer 22

weight

Question 23

the attractive force that exists between all objects that have mass is called

Answer 23

gravity

Question 24

what type of force resists the motion of two surfaces that are touching

Answer 24

friction

Question 25

this is usually measured in Kg and consists of the amount of matter an object has

Answer 25

mass

Question 26

the tendency of an object to resist a change in its motion is called

Answer 26

inertia

Question 27

if forces acting on an object combine and form a net force of xero you will have

Answer 27

balanced forces

Question 28

a crumpled up piece of paper that is dropped and falling through the air is experiencing this type of friction

Answer 28

fluid

Question 29

a push or pull on an object is called what in science

Answer 29

force

Question 30

define Newtons 1st law of motion in your own words and give an example

Answer 30

if the net force of an object is zero the motion of the object does not change if you want a ball to turn or stop then it will be at rest - when you drop a ball its at rest

Question 31

two states besides hawaii and california that have "spacewatch telescopes" to detect approaching asteroids

Answer 31

arizona and new mexico

Question 32

what is any motion in which an object is moving along a curved path

Answer 32

circular

Question 33

what do you call the perpendicular force to the direction of circular motion

Answer 33

centripetal

Question 34

baseball being hit by a bat, a puch being slapped by a stick, a putter tapping a golf ball are all examples of

Answer 34

opposite forces

Question 35

the product of an object's mass and velocity is considered

Answer 35

momentum

Question 36

billiard balls gain the momentum lost by the cue ball, this is an example of

Answer 36

the law of conservation of momentum

Question 37

define momentum in your own words

Answer 37

especially when moving at a high speed the ability/how fast something can be stopped

Question 38

what do we call the starting point that describes the location, or position of an object

Answer 38

reference point

Question 39

the complete description of your position includes

Answer 39

distance direction, and a reference point

Question 40

how many signals from satellites are typically used to determine the position of GPS

Answer 40

4

Question 41

the measure of the distance an object travels per unit of time would be a good definition of

Answer 41

speed

Question 42

what do we call the rate of change of position in which the same distance is traveled each second

Answer 42

constant speed

Question 43

the speed at a specific instant in time is called

Answer 43

instantaneous speed

Question 44

the total distance traveled divided by the total time taken to travel that distance is known as

Answer 44

average speed

Question 45

the steeper lines in a distance-time graph, indicate...

Answer 45

faster speeds

Question 46

which of these is the best example of displacement in the context of chapter 1

Answer 46

difference between the initial position and the final position

Question 47

if you travel 65 mph south you have given a measurement of

Answer 47

speed

Question 48

when a car's velocity is changing so is the

Answer 48

acceleration

Question 49

if you know the total distance and the time is takes for an object to travel that distance you can determine

Answer 49

average speed

Question 50

what is the equation for acceleration

Answer 50

a = final speed - initial speed / time