Chapter 10.3-10.5 Quiz

Question 1

Centrifugal force

Answer 1

Center-fleeing, it’s actually the centrifugal force effect bc it’s not really a force it just seems like it wants to push away

Question 2

Centripedal force

Answer 2

Center seeking,

Question 3

Terminal velocity

Answer 3

When air resistance is matching gravity and you don’t accelerate

Question 4

How many mikes above earth is the Geosynchronous orbit

Answer 4

22,300 miles above earth.

Question 5

Geosynchronous orbits happen when

Answer 5

The speed of a s satellite is moving at the same speed of earth they appear to standstill in the sky because they’re both moving at the same speed

Question 6

True or false GPS satellites are very close Orbitz they also get radio signals and measure time

Answer 6

Sure not sure true

Question 7

Friction

Answer 7

How are things collide and move past each other

Question 8

What are the two types of friction

Answer 8

Kinetic and static

Question 9

Kinetic friction

Answer 9

The friction from motion it is what causes your hands to warm when you rub them together

Question 10

Static friction

Answer 10

The friction that keeps objects from moving even if you push them because friction pushes back on your finger

Question 11

What materials molecular shape makes it have a smooth surface. It has a little friction because of this nonstick skillet are coated with it it is also used medically because it can rub together and not get damaged

Answer 11

Tephlon

Question 12

The equation for work

Answer 12

Force x distance =work

Fd=w

Question 13

What is work

Answer 13

Marcus force changing something over some distance

Question 14

Equation for power

Answer 14

Work/time =power

Question 15

What is power

Answer 15

Powers how quickly the work is according

Question 16

What is power usually measured in

Answer 16

Watts and kilowatts

Question 17

Momentum

Answer 17

“Quantity of motion”

Question 18

Equation for momentum

Answer 18

Momentum= mass x velocity

Question 19

T or f if you double the mass you get double the momentum same for velocity

Answer 19

T

Question 20

Law of conservation of momentum

Answer 20

Momentum is always conserved you can’t lose it but it can get spread out

Question 21

Elastic collisions

Answer 21

The momentum is transferred to another object without structural damage

Question 22

Inelastic collision

Answer 22

Collision with a structural damage occurs

Question 23

What are the six simple machines

Answer 23

Lever wedge wheel and axle incline plane pulley and a screw

Question 24

What is the machine

Answer 24

Any device that helps you do work

Question 25

What is mechanical advantage

Answer 25

How well a machine helps you work

Question 26

True or false, every machine is 100% efficient

Answer 26

False because they’re always be friction

Question 27

What does the lever consist of

Answer 27

The fulcrum the input in the output

Question 28

What is the fulcrum

Answer 28

The pivot upon which the beam rests

Question 29

T or f there is mechanical advantage with a single pulley

Answer 29

False it’s the same weight but it does change the direction

Question 30

Cranes are

Answer 30

Large pulleys