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American National Curriculum

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Physics

Fundamental Forces

Fundamental Forces - Physics Questions asked by Filo students

Question 1

An ant walks 1.0 meters due west and then 3.0 meters due north. The direction of the ant's displacement is degrees. (Use the counter- clockwise from East convention.) Enter a numerical answer.

Topic:

Fundamental Forces

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Question 2

Geraint Thomas of Great Britain won the 2018 Tour de France. Suppose he had

140 Nm

of torque about the crankshaft of his bike after applying a force of

800 N

vertically. What is the length of Geraint's crankshaft on his racing bike?

$2.52 mm$
$112, 000 mm$
$175 mm$
$5.71 mm$

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Fundamental Forces

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Question 3

Bone Fractures 30. Using the key choices, identify the fracture types and treatments described Bone Fractures 79 below. Enter the appropriate key letter or term in each answer blank. KEY CHOICES: A. Closed reduction B. Compression fracture C. Compound fracture

D. Greenstick fracture 1. Bone is broken cleanly; the ends do not penetrate the skin F. Simple fracture

B. Open reduction

Nonsurgical realignment of broken bone ends and splinting of bone
A break common in children; bone splinters, but break is incomplete
A fracture in which the bone is crushed; common in the vertebral column
A fracture in which the bone ends penetrate through the skin surface.
Surgical realignment of broken bone ends

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Fundamental Forces

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Question 4

For each of the following statements about bone breakage and the repair process that is true, insert

T

in the answer blank. For false statements, correct the underlined terms by inserting the correct term in the answer blank.

A hematoma usually forms at a fracture site.
Deprived of nutrition, osteocytes at the fracture site die.
Non-bony debris at the fracture site is removed by osteoclasts.
Growth of a new capillary supply into the region produces granulation tissue.
Osteoblasts from the medullary cavity migrate to the fracture site.
The fibrocartilage callus is the first repair mass to splint the broken bone.

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Fundamental Forces

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Question 5

What is the acceleration of a train that takes 22 seconds to go from a speed of 73 kilometers per hour to a speed of 45 kilometers per hour?

- 1.6 km / hs

- 1.3 km / h^{2}

- 1.1 km / h / s

0.79 km / h / s

- 1.3 km / h / s

Question 3 Select each set of graphs that could depict the same motion.

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Fundamental Forces

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Question 6

If the magnitude of the torque needed to loosen a nut on a car's tire is

35.0 Nm

, what is the minimum force that the mechanic needs to apply at the end of a

0.500 m

wrench to loosen the nut?

70.0 N

17.5 N

45.0 N

86.0 N

Question 22 4 pts A heavy seesaw is out of balance. A lightweight girl sits on the end that is tilted downward, and a heavy boy sits on the other side so that the seesaw now balances. If the boy and girl both move forward so that they are one-half their original distance from the pivot point, what will happen to the seesaw?

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Fundamental Forces

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Question 7

Temperature and number of particles of gas Pressure and temperature Question 10

6 pts

If pressure is kept constant, to compress nitrogen at

2 atm

from

750 mL

500 mL

, what must the new pressure be?

1.33 atm

3 atm

1 atim

2 atm

Question 11 6 pts What would be the new volume if the pressure on

300.0 mL

of oxygen is increased from

90.0 kPa

120.0

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Fundamental Forces

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Question 8

that would require the work output to be 100 times the work input, which is impossible Question 22 A solid rectangular crystal has the following dimensions:

5.0 cm

width

\times 10.0 cm

length

\times 7.0 cm

height. Its mass is

210 g

. Calculate its density.

1.7 g / cm^{3}

1.4 g / cm^{3}

0.90 g / cm^{3}

0.60 g / cm^{3}

Question 23

3.7

pts

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Fundamental Forces

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Question 9

Unstretched, a spring is

15 cm

long. A load of

30.0 N

stretches it to

19 cm

. Assuming that the spring obeys Hooke's law, how long will it be under a load of

15.0 N

15 cm

19 cm

21 cm

17 cm

Question 24

3.7 pts

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Fundamental Forces

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Question 10

Read this sentence. The car wash cleaned the dirt off the car's paint. Which word from the sentence has a long a vowel sound?

car
wash
clean
paint

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Fundamental Forces

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Question 11

RBAEZA_TSA_HS_SCl_E_Physics A Final [50 ltems] Mary sees a flowerpot sitting in a window 15 meters above her head. If the flowerpot falls out of the window, how long does she have to react and move before the flowerpot hits the ground?

$1.7 s$
$1.5 s$
$3.1 =$
$3.6 s$

Topic:

Fundamental Forces

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Question 12

5. A child on a sledge is being pulled along a horizontal path by its parent. The child and sledge have a combined mass of

18 kg

and there is a normal force of:

135 N

. Given there is no friction and the parent pulls with a force of

F

at an angle

2 5^{\circ}

above the horizontal, then what is

F

rg: ing D_{g} = (b cog) (- 93 sin^{2}) g = [26. s^{2 N} Fins = mill

Topic:

Fundamental Forces

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Question 13

Define the following terms

Proportionality
Principle of double effect
Beneficence
Nonmaleficence
Justice
Surrogate

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Fundamental Forces

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Question 14

Problem 6 - A

45 kg

block is at rest on a

3 0^{\circ}

ramp. a. Draw the Free-Body Diagram. b. What is the force of static friction felt by the block? c. What is the normal force felt by the block?

Topic:

Fundamental Forces

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Question 15

Which formula gives the slandard deviation of a data set?

$\frac{\sum ( x - x ) ^{3}}{( n + x )}$
$\frac{\sum ( x - x ) ^{2}}{( n - 1 )}$
$\frac{\sum ( x - x ) ^{2}}{n}$
$\frac{2 ( x + x ) ^{2}}{( n - 1 )}$

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Fundamental Forces

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Question 16

Which of the following could be a hypothesis?

A testable explanation
A testable question
A tested question
A tested fact

Topic:

Fundamental Forces

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Question 17

50.0 - N

force is applied to a

6.6 - kg

object to move it with a constant velocity of

1.5 m / s

across a rough, level surface. Determine the.

force of friction on the object.
weight of the object
normal force between the object and the floor.
coefficient of kinetic friction between the object and the surface.

Topic:

Fundamental Forces

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Question 18

In a YDSE, the slits are

d

distance apart and are illuminated by red light. Whole system is immersed in a liquid of refractive index

\frac{6}{5}

. Which of the following is incorrect? Only one correct answer

Fringe width decreases
Position of maxima remains unchanged
At central maxima path difference is zero
At locations other than central maxima, path difference changes

Topic:

Fundamental Forces

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Question 19

4 : 49

An aqueous solution of glucose has an osmotic pressure of

24.63 atm

2 7^{\circ} C

. If the density of the solution is

1.18 g / mL

. Then what would be normal boiling point of resulting solution? [Use

R

= 0.0821 L atm mol^{- 1} K^{- 1}; K_{b} (H_{2} O) = 0.52 K kg

mol^{- 1}]

Only one correct answer (i)

$100.1 5^{\circ} C$
$100.2 6^{\circ} C$
$100.3 2^{\circ} C$
$100.5 2^{\circ} C$

Topic:

Fundamental Forces

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Question 20

Which equation links acceleration, mass and resultant force?
resultant force = mass

+

acceleration
resultant force = mass

\times

acceleration
resultant force = mass

-

acceleration
resultant force = mass

:

acceleration

Topic:

Fundamental Forces

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