Quiz Preview 7: Physics & Space Science - Introductory Physics

A nuclear reaction is said to be endothermic if the total kinetic energy is

The maximum voltage of an ac signal is 8.0 V. What is the rms value of this voltage?

The pulsations from a neutron star are due to

Dielectrics: A 12.6-µF isolated capacitor is constructed with Teflon, having a dielectric constant of 2.1, between the plates. The capacitor is initially charged to 1.5 volts, and then the Teflon is removed.(a) How much excess charge was originally stored on the plates of the capacitor?(b) After removing the Teflon, what is the potential difference across the capacitor plates?

5

For a selected atom in a sample of a radioactively decaying isotope, the probability that it will decay during a time interval of a specified length is

6

The Mercalli scale measures an earthquake's

7

Compared to a soft sound, the speed of a loud sound is

8

Impedance: In a series RLC ac circuit, a second resistor is connected in parallel with the resistor previously in the circuit. As a result of this change, what happens to the impedance of the circuit?

9

A lump of uranium has a mass of 2.0 kg, and begins at rest. One half of the lump's mass is going to be totally converted into kinetic energy of the other half. After this is done, how fast is the remaining half going?

10

A circular cylinder of height 1.20 m having faces of diameter 0.620 m is immersed in water of density 1.00 × 103 kg/m3 with its axis vertical so that its faces are parallel to the surface of the water

11

Your vocal cords are used to produce all the sounds you make while speaking

12

Which of the following divisions of time cannot be changed by a human decision?

13

When a guitar is tuned to adjust it pitch, what is it that is changed?

14

A 5.0-liter gas tank holds 1.4 moles of helium (He) and 0.70 moles of oxygen (O2), at a temperature of 260 K. The atomic masses of helium and oxygen are 4.0 g/mol and 16.0 g/mol, respectively

15

A piece of chocolate melts in your mouth. This is an example of

16

A 20.0 cm wrench is used to generate a torque at a bolt. A force of 50 N is applied at the end of the wrench at an angle of 60.0 degrees to the wrench. The torque generated at the bolt is

17

Average speed multiplied by time gives

18

Water is flowing in a drainage channel of rectangular cross-section

19

Express 14°F in °C

20

Density: A hollow sphere of negligible mass and radius R is completely filled with a liquid so that its density is ρ. You now enlarge the sphere so its radius is 2R and completely fill it with the same liquid. What is the density of the enlarged sphere?

21

When a high-velocity beam of electrons is bent by a magnetic field, relativistic effects

22

A 15-μF capacitor and a 25-μF capacitor are connected in parallel, and charged to a potential difference of 60 V. How much energy is then stored in this capacitor combination?

23

Two charged bodies separated by a distance d exert a repulsive electrical force on each other. The signs of the charges on the two bodies might be

24

A thin lens of focal length -12.5 cm has a 5.0 cm tall object placed 10 cm in front of it. Where is the image located?

25

Find the frequency of X-rays of wavelength 1 Å = 10−10 m

26

When using rays to represent the direction of light, these are drawn

27

Define texture

28

Two particles, each having a mass of 3.0 μg and having equal but opposite charges of magnitude 5.0 nC, are released simultaneously from rest when the two are 5.0 cm apart. What is the speed of either particle at the instant when the two are separated by 2.0 cm?

29

If a pizza radiates more energy than it absorbs, its temperature

30

When it is struck by 240-nm photons, a material having a work function of 2.60 eV emits electrons

31

Bulk Modulus: A copper sphere that is 10 cm in diameter at an atmospheric pressure of 1.01 × 105 N/m2 is put into a chamber where the pressure is 1.0 × 106 N/m2. What is the change in the diameter of the sphere caused by this change in pressure? The bulk modulus for copper is 1.4 × 1011 Pa.

32

A driver, traveling at 22 m/s, slows down her 2000 kg truck to stop for a red light. What work is done on the truck by the friction force of the road?

33

Motional Emf: As shown in the figure, one end of a metal bar is in contact with a circular rail and the other end is pivoted at P. A steady uniform, magnetic field B into the page is present. As the bar rotates about point P in a clockwise direction, the direction of the induced current through the resistor R is<img src="https://sciemce.com/files/4/ppg__cp1pbb0313192044__f286g1q2g1.jpg" alt="" style="vertical-align: 0.0px;" height="153" width="125" />

34

If the wavelength of light in Young's two-slit experiment is decreased, which one of the following statements is true of the interference pattern?

35

If you exert 6 N across a distance of 2 m in 3 s you'll deliver a power of

36

Energy Levels:Consider the Bohr model for the hydrogen atom. (c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s) (a) How much energy (in eV) is needed to cause a transition of an electron from the second excited state to the third excited state?(b) What wavelength photon just has enough energy to initiate the transition in (a)?

37

A diatomic has a moment of inertia of 7.73 × 10-45 kg∙ m2. What is its rotational energy in the quantum state characterized by l = 2? (h = 6.626 × 10-34 J ∙ s, h = 1.055 × 10-34 J ∙ s, 1 eV = 1.60 × 10-19 J)

38

When we analyze situations that involve the kinetic and potential energies of falling objects, we identify the system as e?

39

Work-Energy Theorem: Which requires more work, increasing a car's speed from 0 mph to 30 mph or from 50 mph to 60 mph?

40

The electrons in a beam are moving at 18 m/s. (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ∙ s)

41

Assume that an ohmic light bulb’s brightness is directly proportional to the power it dissipates. If we replace the battery in our simple circuit with one with twice the characteristic potential difference, the bulb’s brightness

42

How could you test an ore sample for radioactivity?

43

An inductor and a resistor are connected in series across an AC generator as in Figure OQ33.1. Immediately after the switch is closed, which of the following statements is true?

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

44

A graduate student in astronomy who grew up in Illinois gets to accompany her research professor to the South Pole Telescope. What will be different at the South Pole from the way she remembers the sky in Illinois?

45

If a mile of 24-gauge copper wire has a resistance of 0.14 kΩ and the resistivity of copper is 1.7 × 10^−8 Ω / m, what is the diameter of the wire? (1 mile = 1.6 km)

46

What should be the height of a dipole antenna (of dimensions 1/4 wavelength) if it is to transmit 1200 kHz radiowaves?

47

The typical mountain valley that has been subjected to glaciation is shaped like

48

The diagram below shows five cylinders, each cylinder rotating with constant angular velocity about its central axis. The magnitude of the tangential speed of one point of each cylinder is shown, along with each cylinder's radius and mass. Which cylinder has the largest angular momentum?

49

LR Circuits: The figure shows a circuit. The ideal battery has a constant terminal voltage of ε = 27 V, the inductance is L = 0.40 H, and the resistances are R1 = 12 Ω and R2 = 9.0 Ω. Initially the switch S is open with no currents flowing. Then the switch is suddenly closed.(a) What is the current in the resistor R1 the instant after the switch is closed?(b) After leaving the switch has been closed for a very long time, it is opened again. Just after it is opened, what is the current in R1?<img src="https://sciemce.com/files/4/ppg__cp1pbb0313192044__f302g1q1g1.jpg" alt="" style="vertical-align: 0.0px;" height="183" width="333" />

50

The electric power of a lamp that carries 2 A at 120 V is

51

Six identical blocks of steel, each with mass 10.0 kg, are taken to the Moon. On the Moon, their combined mass is

52

When measuring air temperature, it is best to avoid

53

Self-Inductance: A coil with a self-inductance of 6.0 H has a constant current of 2.0 A flowing through it for 2.0 s. What is the emf induced in this coil?

54

Farsightedness can usually be corrected with

55

Fiber optics in a DVD player contain their light by employing total internal reflection. Designers surround the pure glass core with another type of glass, called cladding, that has a different index of refraction from the core.<img src="https://sciemce.com/files/4/ppg__1310829190851__f1q265g1.jpg" alt="" style="vertical-align: 0.0px;" height="94" width="103" /> How should you select a cladding?

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Quiz Preview 7: Physics & Space Science - Introductory Physics

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