Review: Gravity & 1D Projectile Motion

Review: Gravity & 1D Projectile Motion

Assessment

Flashcard

Physics

9th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the speed of an object thrown straight up when it returns to the same height?

Back

The speed is the same as the initial speed when it returns to the same height, assuming no air resistance.

2.

FLASHCARD QUESTION

Front

What is a projectile?

Back

A projectile is any object that is thrown, dropped, fired, or otherwise propelled, and is subject to the force of gravity.

3.

FLASHCARD QUESTION

Front

What is the formula for calculating the time an object is in the air when thrown vertically?

Back

Time in the air = (2 * initial velocity) / g, where g is the acceleration due to gravity (approximately 9.8 m/s²).

4.

FLASHCARD QUESTION

Front

What is Newton's law of gravitation?

Back

Newton's law of gravitation states that every point mass attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

5.

FLASHCARD QUESTION

Front

What is the formula for Newton's law of gravitation?

Back

F = G * (m1 * m2) / r², where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between the centers.

6.

FLASHCARD QUESTION

Front

What happens to the speed of a projectile at its highest point?

Back

At its highest point, the vertical speed of a projectile is zero, but it still has horizontal speed if it was launched at an angle.

7.

FLASHCARD QUESTION

Front

What is the acceleration of an object in free fall?

Back

The acceleration of an object in free fall near the Earth's surface is approximately 9.8 m/s² downward.

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