Question 1

What force provides the necessary acceleration for an object to go around in a curve?

Accepted Answer

Gravity

Answer

Tension

Answer

Magnetism

Answer

Friction

Question 2

How fast must an object be rotated for the centripetal acceleration to be substantially larger than 9.8 m/s^2?

Accepted Answer

Faster than 2 seconds for a full rotation

Answer

Exactly 2 seconds for a full rotation

Answer

Exactly 1.5 seconds for a full rotation

Answer

Slower than 1 second for a full rotation

Question 3

What is used to separate the silver chloride in the experiment with the bucket of water?

Accepted Answer

Centrifuge

Answer

Filter paper

Answer

Magnetic field

Answer

Heat source

Question 4

What direction does the water think gravity is in when the bucket is rotated substantially fast?

Accepted Answer

Towards the ceiling

Answer

Towards the floor

Answer

Towards the left

Answer

Towards the right

Question 5

What equation can be used to calculate the centripetal acceleration needed to go around in a curve?

Accepted Answer

V squared divided by R

Answer

F = ma

Answer

E=mc^2

Answer

P=mv

Question 6

What happens if the centripetal acceleration is exactly equal to 9.8 m/s^2 in the experiment with the bucket of water?

Accepted Answer

Gravity provides the required acceleration

Answer

The string breaks

Answer

The bucket falls down

Answer

The experiment fails

Answer

The water spills out

Question 7

What is the effect of increasing the velocity of rotation on the centripetal acceleration in the experiment?

Accepted Answer

Increases

Answer

Zero acceleration

Answer

Decreases

Answer

Reverses direction

Answer

Remains constant

Question 8

What determines the direction of the centripetal force acting on an object in circular motion?

Accepted Answer

Towards the center of the circle

Answer

Away from the circle

Answer

Tangential to the circle

Answer

Perpendicular to the circle

Answer

Parallel to the circle

Question 9

What is the role of the centripetal force in maintaining circular motion?

Accepted Answer

Provides the acceleration towards the center

Answer

Keeps the object at rest

Answer

Pushes the object outward

Answer

Slows down the object

Answer

Lifts the object upward

Question 10

How does the bucket of water behave when the centripetal acceleration is substantially larger than 9.8 m/s^2?

Accepted Answer

Stays in the bucket even when upside down

Answer

Forms a vortex

Answer

Floats away

Answer

Sinks to the bottom

Answer

Spills out

Question 11

In the daredevil experiment with the bucket of water, what direction does the water think gravity is acting on it?

Accepted Answer

Towards the ceiling

Answer

Towards the floor

Answer

Downwards

Answer

Towards the walls

Answer

Upwards

Question 12

What is the minimum velocity required for the bucket of water to stay in the bucket when rotated in less than 2 seconds?

Accepted Answer

3.2 m/s

Answer

5.5 m/s

Answer

4 m/s

Answer

2.5 m/s

Answer

1 m/s

Question 13

What force provides the necessary centripetal acceleration for an object in circular motion?

Accepted Answer

Centripetal force

Answer

Magnetic force

Answer

Frictional force

Answer

Inertial force

Answer

Gravitational force

Question 14

What is the relationship between centripetal acceleration and radius of the curve?

Accepted Answer

Inverse

Answer

Direct

Answer

Exponential

Answer

Logarithmic

Answer

Linear

Question 15

What formula can be used to calculate the centripetal acceleration required to go around a curve?

Accepted Answer

V squared divided by R

Answer

R squared times V

Answer

V squared divided by 2R

Answer

V times R

Answer

V divided by R

Question 16

When the centripetal acceleration required is greater than 9.8 m/s^2, what additional force is needed to provide the acceleration?

Accepted Answer

String tension

Answer

Magnetic force

Answer

Wind resistance

Answer

Gravity

Answer

Friction

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