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Physics Q2 Summative Exam

Authored by Angelina Villagen

Mathematics

12th Grade

CCSS covered

Used 6+ times

Physics Q2 Summative Exam
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20 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If you were to stand next to a black hole with a mass equal to that of the sun, what do you think would happen to you?

You will be pulled in and unable to escape.

You will float away unaffected.

You will experience a strong push away from it.

You will feel a slight gravitational pull but remain safe.

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

When balancing a heavy object on one side, why might you extend your opposite leg outwards?

to improve your posture.

to increase your overall strength.

to enhance your stability and balance.

to reduce the load on your back.

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What happens when a female gymnast moves from an extended position to a tucked position?

Neither A nor B.

Cannot be determined.

She increases her rotational inertia.

She decreases her rotational inertia.

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Which of the forces pictured as acting upon the rod will produce a torque about an axis perpendicular to the plane of the diagram at the left end of the rod?

F1

F2

Both A and B

Neither

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A uniform rod of mass 3 kg and length of 3.0 m is pivoted about an axis perpendicular to the rod and 1.0 m from its left end. Calculate the rotational inertia about this axis.

3.00 kg·m²

4.25 kg·m²

2.50 kg·m²

1.50 kg·m²

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A 30-N force is exerted at the end of a lever arm that is 50-cm long. The force is applied at an angle of 90 degrees to the lever arm. What is the torque produced by the lever on the object? Show your solution.

1.5 N·m

15 N·m

30 N·m

60 N·m

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

When 100 J of work is done upon a flywheel, its angular speed increases from б0 rev/min to 180 rev/min. What is its moment of inertia?

0.204 kg/m³

0.63 kg/m³

0.024 kg/m³

0.404 kg/m³

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