Physics Final Test Grade 11

A satellite revolves around the Earth with a period of 90 minutes. What is the angular velocity of the satellite?

• 0.001 rad/s

• 0.010 rad/s

• 0.100 rad/s

• 1.000 rad/s

A satellite revolves around the Earth with a period of 90 minutes. What is the angular displacement of the satellite one hour after the satellite launched from the Earth?

• ⅓ℼ radians

• ⅔ℼ radians    

• ℼ radians

• 1 ⅓ℼ radians

What is the dimension of gravitational constant G? Hint: M is the dimension of mass, L is the dimension of length, and T is the dimension of time.

• ML²T²

• M³L³T⁻²

• M⁻¹L³T⁻²

• M²L3T⁻²

Which of the following statements is not true about uniform circular motion?

• The centripetal acceleration is always perpendicular to the linear (tangential) velocity and directed to the center of the orbit.

• The radius of the orbit is constant.

• The SI unit for both linear velocity and angular velocity is m/s.

• None of the above.

What is the ratio of angular velocity of hour and minute hands of a clock?

• 1:1

• 1:12

• 1:36

• 1:60

Rank from the lowest to highest gravitational force of the given systems.

• Universe, Local Cluster, Super Cluster, Milky Way Galaxy, Solar System, Sun, Earth.

• Earth, Sun, Solar System, Milky Way Galaxy, Local Cluster, Super Cluster, Universe.

• Sun, Earth, Milky Way Galaxy, Solar System, Local Cluster, Super Cluster, Universe.

• Earth, Sun, Milky Way Galaxy, Solar System, Local Cluster, Super Cluster, Universe.

Which of the following factors would not cause differences between actual gravitational acceleration  and gravitational acceleration given by a=GM/r²?

• Earth is rotating.

• Earth is not a perfect sphere.

• Earth’s mass is not uniformly distributed.

• Earth contains water.

The magnitude of gravitational force between two objects is….

• Proportional to square of the distance between the objects.

• Proportional to square of the masses of the objects.

• Inversely proportional to the distance between the objects.

• Inversely proportional to the square of the distance between the objects.

One-sixth of a revolution is….

• ⅓ℼ radians

• ⅔ℼ radians    

• ℼ radians

• 1 ⅓ℼ radians

The Moon is the satellite of the Earth. The Moon has a …. gravity than the Earth.

• Weaker

• Stronger