Physical Science 1st Semester Test

Physical Science 1st Semester Test

Assessment

Flashcard

Science

10th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It occurs when an object speeds up, slows down, or changes direction.

2.

FLASHCARD QUESTION

Front

What direction is acceleration in relation to net force?

Back

The acceleration of an object is in the same direction as the net force acting on it.

3.

FLASHCARD QUESTION

Front

What is the formula to calculate speed?

Back

Speed = Distance / Time.

4.

FLASHCARD QUESTION

Front

How do you calculate the time it takes for sound to travel a certain distance?

Back

Time = Distance / Speed. For example, if sound travels at 330 m/s, to find the time for 1,485 m: Time = 1,485 m / 330 m/s = 4.5 s.

5.

FLASHCARD QUESTION

Front

What is the SI unit of force?

Back

The SI unit of force is the Newton (N).

6.

FLASHCARD QUESTION

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's 2nd law of motion, Force = Mass x Acceleration (F = ma).

7.

FLASHCARD QUESTION

Front

What is the 1st law of motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

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