Physics, 20.11.2021 09:00 CameronVand21
Question 13 (2 points)
A mass of 5.00 kg is in a gravitational field of�7.00�N/kg�. What force acts on the mass?
Question 13 options:
35.0 N
0.71 N
1.4 N
9.8 N
Question 14 (2 points)
If you plotted vector arrows around a mass to represent gravitational field vectors, describe how the length of the arrows would change as the locations at which they are drawn become closer to the mass that produces the field.
Question 14 options:
The arrows would become shorter.
The arrows would become longer.
The arrows would remain the same length.
The arrows would become shorter and reverse direction at some distance.
Question 15 (2 points)
What is Kepler's first law of planetary motion?
Question 15 options:
Planets have circular orbits.
Planets have elliptical orbits.
The eccentricity of a planet's orbit is proportional to its distance from the sun.
The period of a planet's orbit is proportional to its distance from the sun.
Question 16 (2 points)
Which of these is correct about the moon's motion around the earth?
Question 16 options:
Centrifugal force acting on the moon balances the force of the earth's gravity.
The moon is in free fall.
There is no gravity acting on the moon because it is in orbit.
The moon exerts no gravitational force on the earth.
Question 17 (2 points)
Which of the following objects do not have gravitational fields?
Question 17 options:
apple
boulder
cat
all objects have gravitational fields
Question 18 (2 points)
Which of the following will generate the largest gravitational field?
Question 18 options:
a paperclip
a dog
a computer
the Earth
Question 19 (2 points)
What happens to the gravitational force between two objects if the distance between them decreases?
Question 19 options:
The gravitational force increases.
The gravitational force decreases.
The gravitational force stays the same.
The gravitational force is not related to the distance.
Question 20 (2 points)
What happens to the gravitational force between two objects if the distance between them increases?
Question 20 options:
The gravitational force increases.
The gravitational force decreases.
The gravitational force stays the same.
The gravitational force is not related to the distance.
Question 21 (2 points)
What happens to the gravitational force between two objects if the mass of both increases?
Question 21 options:
The gravitational force increases.
The gravitational force decreases.
The gravitational force stays the same.
The gravitational force is not related to the distance.
Question 22 (2 points)
What happens to the gravitational force between two objects if the mass of both decreases?
Question 22 options:
The gravitational force increases.
The gravitational force decreases.
The gravitational force stays the same.
The gravitational force is not related to the distance.
Question 23 (2 points)
Which of these is generally considered to have been discovered by Einstein?
Question 23 options:
Mass bends space-time.
Space is empty.
An electric charge produces an electric field around it.
Gravity causes acceleration.
Question 24 (2 points)
Which of the following scientists is not involved with gravitation?
Question 24 options:
Einstein
Kepler
Newton
Curie
Question 25 (2 points)
What type of force is gravitational force?
Question 25 options:
field force
applied force
contact force
Answers: 2
Physics, 21.06.2019 17:00, caitlinwillie3223
If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction
Answers: 1
Physics, 22.06.2019 01:30, LarryJoeseph
Question 7 [2 marks] in the circuit below, the electromotive force generated by the battery is e = 6.0 v, and the resistances are r1 = r4 = 1.0 q, r2 = r3 =2.0 q. r. the power delivered by the battery to the circuit is closest to a. 6 w в. 12 w с. 15 w d. 18 w e. 20 w final exam autumn 2014 page 5 of 9 68037 physical modelling faculty of science [2 mark] question 8 with reference to question 7, the current through resistor r2 is closest to a. 1 a в. 2 а c. 3 a d. 4 a e. 6 a
Answers: 2
Physics, 22.06.2019 02:30, erinolson07cats
The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?
Answers: 3
Physics, 22.06.2019 15:30, haileyjones732
Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.
Answers: 1
Question 13 (2 points)
A mass of 5.00 kg is in a gravitational field of�7.00�N/kg�. What force act...
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