Testing TechniquesAstronomy

Eric AngatTeacher

1.Which sequence correctly list the hierarchy of the universe, from smallest to largest.

a.Universe, galaxy, solar system, Earthb.Galaxy, universe, Earth, solar systemc.Earth, solar system, galaxy, universed.Solar system, Earth, universe, galaxy

Universe is the biggest, then A is wrong.Galaxy is the second biggest, then B is wrong.

Now , it is between C and D. Which is smaller Earth or the Solar system?

2. Which has the most influence on ocean tides?

a.Rotation of earth on its axisb.The revolution of earth around the sun.c.The gravitational pull of the other

planets.d.The gravitational pull of the moon.

Rotation causes day and night. A is not the answer!Revolution is year, B is not the answer!Gravity causes tides but it is too general. C may not be the answer.

The moon has the greatest influence on Earth’s tides because it is so near. D is the answer!

Combined gravity of the moon and the Sun results to higher high tide.

Spring tide

Spring tide is higher high tide.

3. How does a straight alignment between Earth, the sun, and the moon impact the tides on Earth?A. It produces the greatest change in high and low tides.B. It produces the least change in high and low tides.C. It produces semidiurnal tides.D. It produces diurnal tides.

4. What is the season in the Northern hemisphere when the Earth is farthest from the Sun (Aphelion)?

a. Winterb. Summerc. Springd. Fall

Remember! The seasons in the northern and southern hemispheres are the opposite.

When the Earth is farthest from the sun, the season in the northern hemisphere ( USA) is summer and winter in Southern hemisphere ( Aus).

summer

winter

Earth is tilted at 23.5 degrees that results to our seasons.

5. If it is summer in the northern hemisphere, which statement is true?

A. Earth has changed the tilt of its axis by 20 degrees due to its revolution.B. It is winter in the southern hemisphere due to the tilt of Earth’s axis.C. It is summer in the southern hemisphere due to the tilt of Earth’s axis.D. Earth has reached its closest point to the sun due to its revolution.

6. Kepler’s third law describes the relationship between the average distance of a planet from the sun and the?a.) orbital period. b.) average temperature. c.) gravitational pull. d.) inertia.

Kepler's three laws of planetary motion.

1st Law- orbits are ellipses or oval.2nd Law-equal areas in equal time.3rd law-planets near the sun orbits faster.

7. Kepler’s second law states that the lines joining the planets to the Sun sweeps out equal areas in?a.) orbital period. b.) elliptical orbit. c.) equal time. d.) gravity.

Kepler's three laws of planetary motion.

1st Law- orbits are ellipses or oval.2nd Law-equal areas in equal time.3rd law-planets near the sun orbits faster.

8. Which symbol in the picture represents precession?

a.Ab.Pc.Nd.R

There is no “A” symbol in the picture, option A is wrong!

Precession is the rotation of Earth’s axis and it starts with “P”. Nutation is the swaying and it starts with “N”, “R” then stands for rotation.

9. How do stars like our Sun produce heat and energy?

a.by splitting atoms like Uranium through nuclear fission.

b.by combining atoms like hydrogen or nuclear fusion.

Remember! The fuel of stars is Hydrogen or H.

Nuclear Fission – splitting of atoms.

Nuclear Fusion – splitting of atoms.

Hydrogen bomb is 450X stronger than Uranium bomb dropped in Japan.

Uranium-235 bomb.Hiroshima and Nagasaki

Nuclear fusion powers stars.

Electricity production

Fission-splits

Fusion-combines

Powers the Sun.

Powers nuclear power plants that provide us electricity.

10. Which describes the difference between nuclear fission and nuclear fusion?A. Nuclear fission is the process that produces the radiant

energy of stars, and nuclear fusion splits a heavier nucleus into smaller nuclei.

B. Nuclear fission splits a heavier nucleus into smaller nuclei, and nuclear fusion is the process that produces the radiant energy of stars.C. Nuclear fission produces the energy in the core of Earth, and nuclear fusion produces energy in nuclear power plants.D. Nuclear fission produces energy in nuclear power plants, and nuclear fusion produces the energy in the core of Earth.

11. How is solar energy so important to the life on Earth?

a.Because light enables living things to see.b.Because light travels through space in the

form of electromagnetic waves.c.Because plants are producers of food and

need sunlight for photosynthesis.d.Because light makes our bones and teeth

strong.

All of the choices are true but which of them answers the question?Plants need light for photosynthesis and produce food for themselves and everyone.

Sunlight is used as energy for photosynthesis

Without plants we do not have oxygen and food.

12. Why do green plants require solar energy?A. to produce their own foodB. to absorb nitrogen into their rootsC. to release carbon dioxide into the atmosphereD. to decompose the dead or decaying remains of animals

13. The point where the Earth and the moon orbit one another is called_____.

a.Sunb.gravityc. ellipticald.barycenter

Barycenter is the center of gravity. All stars and planets revolve around their barycenter.

The Sun is not a point between the Earth and the moon. A is wrong!

Gravity is a force not a point between the Earth and the moon. B is wrong!

Elliptical is a shape and not a point between the Earth and the moon. C is wrong!

Testing TechniquesPlate Tectonics

Eric AngatTeacher

Types of Plate Boundaries Convergent boundary Transform boundary Divergent boundary

PacificAtlantic

In what area can you find the most volcanoes?

Most volcanoes are found in the Pacific ring of Fire.

Area of Most frequent

EARTHQUAKES!

1. What type of plate boundary lies between the Pacific plate and the North American Plate?

a.Divergent boundaryb.Transform boundaryc.Convergent boundaryd.Sliding boundary

2. What type of plate boundary lies in the middle of the Atlantic Ocean?

a.Divergent boundaryb.Transform boundaryc.Convergent boundaryd.Sliding boundary

3. What type of plate boundary lies between the Pacific plate and the Australian Plate?

a.Divergent boundaryb.Transform boundaryc.Convergent boundaryd.Sliding boundary

4. The convergent boundaries around the Pacific Ocean forms the_______.

a.plate tectonicsb.Subductionc.Pacific Ring of Fired. frequent earthquake Plate tectonics include all types of plate boundaries. A is not the answer.

Subduction happens in convergent boundaries but B does not complete the sentence.

We are left with C and D.

Earthquakes are most frequent around the Pacific Ocean but it does not complete the sentence.

Convergent boundary around the Pacific Ocean forms the Pacific Ring of Fire.

A

BC

D

5. In what area would there be the most occurrence of earthquake?a. Ab. Bc. Cd. D

Earthquakes are most frequent around the Pacific Ocean. In the area called the Ring of Fire.

C is the answer!

6. What kind of plate boundary results to the formation of volcanoes, trench and subduction?

a.Divergentb.Transformc.Stressd.Convergent

Divergent boundary causes mid ocean ridge. A is not the answer.

Transform boundary forms faults, like the San Andreas fault. B is not the answer.Stress is caused by the movement of plates. When the stress reach its limit earthquake happens. C is not the answer.

Convergent boundaries form volcanoes, trenches, and causes subduction. D is the answer.

mid-ocean ridge

Atlantic Ocean

Divergent boundary

7. Which structure can form as a result of a divergent plate boundary?A. a continental volcanic arc, due to the collision of two platesB. a continental mountain, due to the collision of two platesC. a mid-ocean ridge, due to the separation of two platesD. an ocean trench, due to the separation of two plates

Shallow focus means stronger earthquake

Focus

Epicenter

deep

shallowFocusSeismic waves

8. Which would produce the most severe earthquake damage along the surface ofEarth?A. an earthquake with a deep focus and a magnitude of 2.5B. an earthquake with a shallow focus and a magnitude of 2.5C. an earthquake with a deep focus and a magnitude of 4.5D. an earthquake with a shallow focus and a magnitude of 4.5