Untitled Document (4) PDF - Physics Past Paper

Question 1 ✔ Correct! According to Galileo, a rolling ball slows down because... It experiences friction. Question 2 ✔ Correct! Foucault's pendulum demonstrates... That Earth is rotating around its axis. Question 3 ✔ Correct! During the winter: The Sun's rays hit the ground at a small angle...

Question 1 ✔ Correct! According to Galileo, a rolling ball slows down because... It experiences friction. Question 2 ✔ Correct! Foucault's pendulum demonstrates... That Earth is rotating around its axis. Question 3 ✔ Correct! During the winter: The Sun's rays hit the ground at a small angle relative to the surface. Question 4 ✔ Correct! If the Sun had a mass half as large, how would the force of gravity between the Earth and the Sun change? It would decrease by a factor of 2. Question 5 ✔ Correct! Who collected the accurate orbital data on planetary motions? Tycho Brahe. Question 6 ✔ Correct! A star is 40° east of the March equinox. This means the star is at... Right ascension 40° Question 7 ✔ Correct! Which book was the first to accurately describe how gravity works? Mathematical Principles of Natural Philosophy. Question 8 ✔ Correct! An ellipse has... Two focal points. Question 9 ✔ Correct! If the Earth had an orbital radius half as large, how would the force of gravity between the Earth and the Sun change? It would increase by a factor of 4. Question 10 ✔ Correct! During the December solstice, in the northern hemisphere... The day is the shortest day of the year. Question 11 ✔ Correct! Why were Galileo's books banned? Because the Catholic Church feared his scientific discoveries would undermine the Church's authority. Question 12 ✔ Correct! I drop two objects in a vacuum. One has a mass of 1 kg and the other has a mass of 2 kg. What will happen? Both objects will fall at the same rate. Question 13 ✔ Correct! When the Earth is farthest from the Sun... It moves the slowest. Question 14 ✔ Correct! What is the rate of change of position called? Velocity. Question 15 ✔ Correct! Where on Earth can a solar eclipse be seen from? Only inside the shadow of the Moon. Question 16 ✔ Correct! During the winter: The Sun is low in the sky. Question 17 ✔ Correct! The gravity on the surface of Mars is about 1/3 of the gravity on the surface of Earth. This means... You weigh more on Earth than you would on Mars. Question 18 ✔ Correct! The Tropic of Cancer... Is at a latitude of approximately 23° N. Question 19 ✔ Correct! Planet A has an orbital period of 100 Earth days. Planet B has an orbital period of 200 Earth days. Which planet is closer to the Sun? Planet A. Question 20 ✔ Correct! Which of the following aspects of Copernicus's heliocentric model was correct? It assumed the planets orbited the Sun. Question 21 ✔ Correct! If I halve the velocity of an object, its momentum will be... Half as large. Question 22 ✔ Correct! Galileo's discoveries which supported the Copernican model included: The moons of Jupiter and the phases of Venus. Question 23 ✔ Correct! Why can't we feel the Earth moving? Because it's moving at a constant speed, and we only feel acceleration. Question 24 ✔ Correct! An object in the Oort cloud... Experiences less gravity from the Sun than an object of the same mass in the Kuiper belt. Question 25 ✔ Correct! Which of the following is always conserved? Momentum Question 1 ✔ Correct! Which of the following aspects of Copernicus's heliocentric model was correct? It assumed the planets orbited the Sun. Question 2 ✔ Correct! An ellipse has... Two focal points. Question 3 ✔ Correct! I drop two objects in a vacuum. One has a mass of 1 kg and the other has a mass of 2 kg. What will happen? Both objects will reach the ground at the same time. Question 4 ✔ Correct! If the Earth had an orbital radius twice as large, how would the force of gravity between the Earth and the Sun change? It would decrease by a factor of 4. Question 5 ✔ Correct! A star is 40° east of the March equinox. This means the star is at... Right ascension 40° Question 6 Which of the following is always conserved? Momentum Question 7 What is the difference between mass and weight? Mass is the amount of matter in the object, weight is the gravitational force on the object. Question 8 Which book was the first to describe a heliocentric model? On the Revolution of the Celestial Spheres. Question 9 ✔ Correct! An object in the Oort cloud... Experiences less gravity from the Sun than an object of the same mass in the Kuiper belt. Question 10 ✔ Correct! According to Galileo, a rolling ball slows down because... It experiences friction. Question 11 ✔ Correct! Why can't we feel the Earth moving? Because it's moving at a constant speed, and we only feel acceleration. Question 12 ✔ Correct! Galileo's discoveries which supported the Copernican model included: The moons of Jupiter and the phases of Venus. Question 13 ✔ Correct! If the Sun had a mass twice as large, how would the force of gravity between the Earth and the Sun change? It would increase by a factor of 2. Question 14 ✔ Correct! During the December solstice, in the northern hemisphere... The day is the shortest day of the year. Question 15 ✔ Correct! When I throw a ball while sitting on a spinning carousel, the ball will seem to me to have a curved path. The reason for that is... The Coriolis force. Question 16 ✔ Correct! What was the content of the book "Dialogue Concerning the Two Chief World Systems"? It presented arguments in favor of the heliocentric model. Question 17 ✔ Correct! If I halve the velocity of an object, its momentum will be... Half as large. Question 18 ✔ Correct! In which latitudes does the Sun shine for 24 or more hours? Between 66.6° N and 90° N. Question 19 ✔ Correct! Planet A has an orbital period of 100 Earth days. Planet B has an orbital period of 200 Earth days. Which planet is closer to the Sun? Planet A. Question 20 ✔ Correct! What is the rate of change of position called? Velocity. Question 21 ✔ Correct! Who collected the accurate orbital data on planetary motions? Tycho Brahe. Question 22 ✔ Correct! During the winter: The Sun is low in the sky. Question 23 ✔ Correct! The far side of the Moon is... Sometimes dark and sometimes not dark. Question 24 ✔ Correct! When the Earth is closest to the Sun... It moves the fastest. Question 25 ✔ Correct! The Tropic of Capricorn... Is at a latitude of approximately 23° S.