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PC Sci Sem1 Content
Pinecrest Cadence Science Sem1 Exam Content Attainment Review
| Question | Answer |
|---|---|
| The orbital motions of the objects in the solar system, and the reason that our solar system doesn’t break apart, are the direct result of the Sun’s what? | gravitational pull |
| What happens to the sunlight as it hits the earth? (which explains why the tilt of Earth on its axis creates the seasons) | the angle of sunlight varies on different parts of Earth at different times. It hits directly during the summer, but at an angle (scatters) during winter. |
| When Earth's shadow is on the Moon, it is called a ... | Lunar Eclipse |
| Describe the revolution of the moon, Earth, and Sun as a system. | The moon revolves around the Earth, and the Earth revolves around the Sun. |
| What is primarily responsible for the changing of seasons on Earth? | Tilt of the axis of Earth and the orbit of Earth around the Sun |
| A rocket is propelled upwards due to the fuel being aimed downward. This is because of Newton's _____________law. | Third |
| A girl is pulling on the handle of a wagon. To move the wagon, the force exerted by the girl must be ___________ than the pull of gravity on the wagon. | greater |
| A small car and a large truck are traveling at the same speed toward each other. The two vehicles collide. Describe the reaction for these vehicles. | They react with the same force, but the car moves backwards due to its lesser mass. |
| A pencil is sitting on DeAnthony's desk. He accidentally bumps it, and the pencil falls to the ground. When the pencil in ON the desk, it has the most _______________________potential energy. | gravitational |
| Describes the formation of the solar system: | A rotating disk of gas and dust was drawn together by the force of gravity. |
| It takes a LESSER force to move a ________________weight. | lighter |
| If a plate is moved from the lowest shelf in the cabinet to the highest shelf, the potential energy is _______________________. | increased |
| A car traveling 30 km/hr requires about 15 meters to stop. A car traveling 60 km/hr requires about 55 meters to stop. This is because objects moving with a greater ________________energy require more energy to stop. | kinetic |
| When the moon passes between the sun and the Earth, and casts a shadow, it causes a __________________eclipse. | solar |
| What is the name of the space telescope that has orbited Earth since 1990 delivering amazing images of space and increasing our understanding of how the universe works? | Hubble |
| Which type of galaxy orbits in a predictable motion? | Spiral Galaxy |
| The Sun's mass creates a gravitational pull that holds the planets in the solar system in _________________. | orbit |
| A lunar eclipse can only occur when the Moon lines up with Earth and the Sun in the position where the Moon normally would have been at which phase? | Full Moon |
| Newton's Third Law states that every action results in an equal and opposite________________. | reaction |
| Why does the position of the stars appear to change? The Earth rotates on its ________________. | axis |
| The sun's ______________ creates a gravitational pull that keeps the planets and the solar system in orbit. | mass |
| All the star systems in our galaxy orbit around the _____________ of the galaxy. | center |
| ___________ is responsible for the motion of the objects in our galaxy. | Gravity |
| Earth and its solar system are a part of which galaxy. | Milky Way |
| All the planets and celestial bodies in our solar system orbit around what? | Sun |
| Potential energy is energy that is____________________ in a system or object. | stored |
| The inner planet that is closest to the sun: | Mercury |
| The inner planet that second from the sun. | Venus |
| The inner planet that is the third planet from the sun. | Earth |
| The inner planet that is the fourth planet from the sun. | Mars |
| The outer, gas giant planet, that is the fifth from the sun. | Jupiter |
| The outer, gas giant planet, that is the sixth from the sun. | Saturn |
| The outer, gas giant planet, that is the seventh from the sun. | Uranus |
| The outer, gas giant planet, that is the eighth from the sun. | Neptune |
| Ceres, Makemake, Pluto, Eris, Haumea are the ________________planets. | dwarf |
| More then 13 billion years ago, within the Milky Way Galaxy, a rotating disk of gas and dust was brought together by gravity and formed our _____________ _______________. | solar system |
| Newton's Second Law states that Force is equal to mass times ______________________. | acceleration |
| If someone is building a scale model of our solar system which characteristic would be the most difficult to build into the model? The immense ________________________ between objects. | distance |
| A _____________is a push or pull that is exerted on an object. | force |
| When an object's height increases, its potential energy_______________. | increases |
| Kinetic energy is energy related to the _________________of objects or particles. | motion |
| An _________________________force causes an object to accelerate. | unbalanced |
| The change in an object's motion depends on the sum of the _______________on the object and the mass of the object. | forces |
| Newton's First Law, also known as the law of __________________, states that an object at rest stays at rest, and an object in motion stays in motion. | inertia |
| What two factors impact gravity? | mass and distance |
Created by:
Ms. Traynor-Grimes (Ms.TG)
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