The Greek letter Δ (Delta) indicates a

difference or change in change in a quantity.

The most appropriate SI unit for measuring the length of an automobile is the

Meter (m) is the standard unit of length.

The speed of an object at rest is

0.0 m/s, An object at rest has zero speed.

The SI unit of velocity is

meter per second. Velocity is measured in meters per second (m/s).

Formula to find the hypotenuse of a right triangle when only the adjacent and opposite sides are known.

Pythagorean theorem c 2 = a 2 + b 2

Behavior of objects of different masses dropped from rest with no air resistance.

Fall with equal accelerations and with equal displacements

What is the cause of an acceleration.

Force is the cause of an acceleration.

What causes a moving object to change direction.

Force causes a moving object to change direction.

What is the effect of a nonzero net force on an object

The object is being accelerated

A change in the gravitational force acting on an object will affect the object's

weight. The weight of an object is the force exerted on it by gravity.

What are the units of the coefficient of friction?

The coefficient of friction has no units. It is a dimensionless quantity.

A force does work on an object if a component of the force is

parallel to the displacement of the object. Work is defined as the product of the force and the displacement in the direction of the force.

the displacement is not zero. If there is no displacement, no work is done.

Physics Concepts Flashcards

Student preview

40 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Area of physics that studies motion and its causes

Back

Mechanics

2.

FLASHCARD QUESTION

Front

Reason physicists use models

Back

To explain the basic features of complex phenomena

3.

FLASHCARD QUESTION

Front

Definition of free-fall

Back

Acceleration due to gravity

4.

FLASHCARD QUESTION

Front

SI base unit used to measure mass

Back

Kilogram

5.

FLASHCARD QUESTION

Front

Dimensions commonly used by physicists in addition to mass

Back

Length and time

6.

FLASHCARD QUESTION

Front

Symbol "mm" represents

Back

Millimeter

7.

FLASHCARD QUESTION

Front

Symbol "kg" represents

Back

Mass

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