Relative Velocity in Two-Dimensional Motion 3rd Six Weeks Exam

Relative Velocity in Two-Dimensional Motion 3rd Six Weeks Exam

10th Grade

15 Qs

quiz-placeholder

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Relative Velocity in Two-Dimensional Motion 3rd Six Weeks Exam

Relative Velocity in Two-Dimensional Motion 3rd Six Weeks Exam

Assessment

Quiz

Physics

10th Grade

Hard

Created by

Katelyn Buse

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain how the velocity of a boat is affected by the current of a river.

It remains constant regardless of the current

It decreases as the current increases

It is altered by the river current, affecting the resultant velocity

It increases with the river current

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a boat travels across a river with a current, how do you determine the resultant velocity of the boat?

By subtracting the river's velocity from the boat's velocity

By adding the boat's velocity to the river's velocity

By vector addition of the boat's velocity relative to the water and the river's current velocity

By dividing the boat's velocity by the river's velocity

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A boat is heading directly across a river with a velocity of 5 m/s relative to the water. The river flows at 3 m/s. What is the magnitude of the boat's resultant velocity?

8 m/s

2 m/s

5 m/s

4 m/s

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Describe the steps to calculate the time it takes for a boat to cross a river when given the width of the river and the boat's velocity relative to the water.

Divide the width by the river's velocity

Multiply the width by the boat's velocity

Divide the width by the boat's velocity relative to the water

Add the width to the boat's velocity

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A river is 200 m wide and flows at 2 m/s. A boat travels at 4 m/s relative to the water. How long does it take for the boat to reach the opposite bank?

50 seconds

100 seconds

25 seconds

200 seconds

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A boat needs to reach a point directly across a 100 m wide river. The river flows at 1.5 m/s, and the boat's speed relative to the water is 3 m/s. At what angle should the boat be steered relative to the current to reach the opposite point directly?

30 degrees

45 degrees

60 degrees

90 degrees

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the angle θ when sin θ = 1.5/3?

30°

45°

60°

90°

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