Circular Motion and Universal Gravitation Physics Practice

Get the circular motion and universal gravitation physics practice you need. Generate 10 and 20 question quizzes here and find other useful practice.

Use our equation sheet for guidance on the equations. This unit uses the gravitation and circular motion section of the equation sheet.

Random 10 Questions from the Circular Motion and Gravitation Test Bank

10 - Circular Motion and Universal Gravitation Questions

1 / 10

How much torque would be provided by a 15N force the direction of A above if it was 0.10 meters away from the bolt?

1.5 Nm cw

1.5 Nm ccw

150 Nm cw

150 Nm ccw

2 / 10

Which would give the least torque if all forces applied at point A, B, C, and D were the same?

D's force is directed parallel to the lever, therefore produces no torque (no torque)

C's torque is the greatest distance and completely perpendicular (most torque)

A and B's torque is less than C but greater than D. Without knowing the angle for B or actual distance for A you can't determine which of these two is greater.

3 / 10

What is the term for a pivot point where rotation can occur?

base

fulcrum

standard

lever

4 / 10

Which graph correctly shows how distance relates to force using the Law of Universal Gravitation?

Distance is in the denominator and squared in the universal gravitation equation below. There is a inverse squared relation. Force decreases not proportionately more early since the d is squared. If you double distance the force goes down to 1/4.

5 / 10

How would a ball travel if you were spinning a ball on a rope above your head and the rope broke?

directly outward from the center of the circle

directly forward tangent to the circle

inwards to the center of the circle

in and outwards repeditively

The ball will keep on going straight when there is not a centripetal force pulling it in. Straight from the outside of the circle is called tangent. So it would go straight ahead tangent to the circle.

6 / 10

The inward force that causes circular motion is _________________.

centrifugal force

normal force

centripetal force

round force

Inertia makes an object want to go forward at a constant rate if in motion. Centripetal force pulls that object inwards making its motion circular.

7 / 10

The time it takes for one rotation is the ___________.

frequency

period

displacement

radius

The period is the time it takes for an event that occurs over and over to happen. In this case it is time to travel in a circle

8 / 10

What is the force of gravity between 96kg Joe and 87kg Jim when the distance between them is 0.20 meters?

1.39 x 10^-5 N

4.79 x 10^-3 N

1.87 x 10^4 N

2.79 x 10^-6 N

9 / 10

What would happen to the force of gravity if you doubled the mass of one object and doubled the distance?

double the force

one half the force

one fourth the force

nine times

10 / 10

How is the force of gravity related to mass?

directly

inversely

inversely squared

Your score is

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Random 20 Questions from the Circular Motion and Gravitation Test Bank

20 - Circular Motion and Universal Gravitation Questions

1 / 20

How much torque would be provided by a 15N force the direction of A above if it was 0.10 meters away from the bolt?

1.5 Nm cw

1.5 Nm ccw

150 Nm cw

150 Nm ccw

2 / 20

How far away should you place a 0.50 kg mass on the left side of a fulcrum to balance a 0.50 kg mass 0.10 meters and another 2.0 kg mass 0.50 m both on the right side of a fulcrum?

0.6 m

2.1 m

2.9 m

4.2 m

3 / 20

How much torque would be provided by a 15N force the direction of A above if it was 0.10 meters away from the bolt?

1.5 Nm cw

1.5 Nm ccw

150 Nm cw

150 Nm ccw

4 / 20

Which would give the least torque if all forces applied at point A, B, C, and D were the same?

D's force is directed parallel to the lever, therefore produces no torque (no torque)

C's torque is the greatest distance and completely perpendicular (most torque)

A and B's torque is less than C but greater than D. Without knowing the angle for B or actual distance for A you can't determine which of these two is greater.

5 / 20

Which would give the most torque if all forces applied at point A, B, C, and D were the same?

D's force is directed parallel to the lever, therefore produces no torque (no torque)

C's torque is the greatest distance and completely perpendicular (most torque)

A and B's torque is less than C but greater than D. Without knowing the angle for B or actual distance for A you can't determine which of these two is greater.

6 / 20

What is the term for the bar or arm attached to a pivot where a rotation can occur?

base

fulcrum

standard

lever

7 / 20

What is the term for a pivot point where rotation can occur?

base

fulcrum

standard

lever

8 / 20

What is the force of attraction between Isaac Newton and his 0.15 kg apple the moment it is 0.3 meters away if his weight was 83.6 kg?

9.3 x 10^-9 N

2.8 x 10^-9 N

140 N

40 N

9 / 20

What is your mass if the attractive force from the 55 kg person 2.0 meters across the table is 4.586 x 10^-8 N? (when rounded to two significant figures)

340000 kg

25 kg

50 kg

63 kg

150000 kg

10 / 20

Which graph correctly shows how distance relates to force using the Law of Universal Gravitation?

11 / 20

What is the tangential velocity of a 50 kg girl is bicycling in circles with a radius of 5.00 m when it takes 12 s to make one rotation?

1.2 m/s

2.6 m/s

4.9 m/s

8.3 m/s

12 / 20

What will happen to the centripetal force required to keep an object going in a circle if mass, radius, and velocity are all doubled?

It would become ___________ times the original.

half

one

two

four

13 / 20

Why would a coffee cup sitting on your car fall off when taking a quick a turn?

inertia makes it want to continue forward

centripetal force makes it want to go backward

centripetal force makes it want to go forward

inertia makes it want to go backward

Its inertia makes it keep on going forward as the car is turning

14 / 20

The number of rotations per time is the ___________.

frequency

period

displacement

radius

Frequency is the number of rotations per time and its unit is Hz or rotations per second

15 / 20

The time it takes for one rotation is the ___________.

frequency

period

displacement

radius

The period is the time it takes for an event that occurs over and over to happen. In this case it is time to travel in a circle

16 / 20

What happens to tangential velocity if you increase the radius?
It _________

increases

decreases

stays the same

17 / 20

What would happen to the force of gravity if you doubled the mass of one object and doubled the distance?

double the force

one half the force

one fourth the force

nine times

18 / 20

What would happen to the force of gravity if you doubled the mass of one object?

double the force

triple the force

one third the force

one ninth the force

19 / 20

What would happen to the force of gravity if you tripled the distance between the objects?

double the force

triple the force

one third the force

one ninth the force

20 / 20

What does a G having a value of 6.67 x 10^-11 tell you about the force of gravity between any two object?

It is very strong

It is very weak

it is always 9.8 m/s/s

G is a very small number 0.0000000000667 and therefore it takes huge masses like planets to feel the attraction to something. You cant feel the attraction to your neighbor, but there is one. You can feel the attraction to earth.

Your score is

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Resources

StickMan Physics Home Page
Circular Motion and Gravitation Content Page
Stickman Physics Table of Contents: Use the search bar or click here to easily find a unit or topic
Physics Equation Sheet: commonly used equations, variables, and units
Rule of Ones: analyzing equations to determine how other variables change
Holdensclass.com: Video walk-through of Many Physics Concepts