A. Space, time and motion

A.1 Kinematics

A.2 Forces and momentum

A.3 Work, energy and power

A.4 Rigid body mechanics

A.5 Galilean and special relativity

B. The particulate nature of matter

B.1 Thermal energy transfers

B.2 Greenhouse effect

B.3 Gas laws

B.4 Thermodynamics

B.5 Current and circuits

C. Wave behaviour

C.1 Simple harmonic motion

C.2 Wave model

C.3 Wave phenomena

C.4 Standing waves and resonance

C.5 Doppler effect

D. Fields

D.1 Gravitational fields

D.2 Electric and magnetic fields

D.3 Motion in electromagnetic fields

D.4 Induction

E. Nuclear and quantum physics

E.1 Structure of the atom

E.2 Quantum physics

E.3 Radioactive decay

E.4 Fission

E.5 Fusion and stars

S Skills in Physics

S1.1 Experimental techniques

S1.2 Technology

S1.3 Mathematics

S2.1 Exploring and designing

S2.2 Collecting and processing data

S2.3 Concluding and evaluating

IB Physics HL B.2 Greenhouse effect Question Bank

[Maximum number: 1]

What is a primary cause of the enhanced greenhouse effect?

Melting of ice at Earth's poles

Increases in volcanic activity

Deforestation of rainforests

Burning of fossil fuels

[Maximum number: 1]

The diagram shows the incident, radiated and reflected intensities of the solar radiation for two regions X and Y on the surface of Earth. X and Y have the same surface temperature.

Which region has a greater albedo, and which region has a greater emissivity?

Greater albedo

Greater emissivity

[Maximum number: 1]

Which of the following is not considered to be a greenhouse gas?

$\mathrm{N}_{2} \mathrm{O}$

$\mathrm{H}_{2} \mathrm{O}$

$\mathrm{O}_{2}$

$\mathrm{CH}_{4}$

[Maximum number: 1]

Which of the following is not considered to be a greenhouse gas?

$\mathrm{N}_{2} \mathrm{O}$

$\mathrm{H}_{2} \mathrm{O}$

$\mathrm{O}_{2}$

$\mathrm{CH}_{4}$

[Maximum number: 1]

Three changes that may affect the climate are:

I. Increasing the capture of carbon dioxide and then storing it
II. Changing the fuel of power stations from natural gas to Uranium-235
III. Changing the fuel of power stations from natural gas to oil

Which changes are likely to reduce the enhanced greenhouse effect?

I and II only

I and III only

II and III only

I, II and III

[Maximum number: 1]

A planet has a known albedo and emissivity. The average intensity received at the surface is $I_{\mathrm{s}}$ . Which graph describes the variation of surface temperature T with $I_{\mathrm{s}}$ ?

[Maximum number: 1]

The solar constant is the intensity of the Sun's radiation at

the surface of the Earth.

the mean distance from the Sun of the Earth's orbit around the Sun.

the surface of the Sun.

10 km above the surface of the Earth.

[Maximum number: 1]

A student claims that the following three factors may affect the rate of global warming.

I. Increased volcanic activity
II. Increased solubility of carbon dioxide ( $\mathrm{CO}_{2}$ ) in the ocean
III. Increased rate of deforestation

Which factors can increase the rate of global warming?

I and II only

I and III only

II and III only

I, II and III

[Maximum number: 1]

The dashed line on the graph shows the variation with wavelength of the intensity of solar radiation before passing through the Earth's atmosphere.

The solid line on the graph shows the variation with wavelength of the intensity of solar radiation after it has passed through the Earth's atmosphere.

Which feature of the graph helps explain the greenhouse effect?

Infrared radiation is absorbed at specific wavelengths.

There is little absorption at infrared wavelengths.

There is substantial absorption at visible wavelengths.

There is little absorption at UV wavelengths.

[Maximum number: 1]

The average albedo of glacier ice is 0.25 .

What is $\frac{\text { power absorbed by glacier ice }}{\text { power reflected by glacier ice }} ?$

0.25

0.33

2.5

3.0

0 selected

Question 11

Question 11

Question 21

Question 21

Question 22

Question 24

Question 24

Question 24

Question 24

Question 25