Linear Motion Chapter 4 Review

Fill-in-the-blank practice flashcards for Chapter 4 - Linear Motion test review.

Velocity is speed with a specific __________ .

direction

A falling object speeds up by __________ down.

$$10\,\text{m/s}^2$$

The slope on a speed-time graph means __________ .

acceleration

At the top of its path, a thrown ball stops for a moment, meaning its velocity is __________ .

$$0$$

In a vacuum, a feather and a coin fall at the __________ speed.

same

If a rock falls for $6\,\text{seconds}$, it falls a distance of __________ .

$$180\,\text{m}$$

An object starting at $0\,\text{m/s}$ and reaching $20\,\text{m/s}$ has an average speed of __________ .

$$10\,\text{m/s}$$

Velocity is defined as __________ with direction.

speed

Among speed, distance, and velocity, the quantity that has a direction (vector) is __________ .

velocity

When speed changes from $10\,\text{m/s}$ to $20\,\text{m/s}$ in $2\,\text{seconds}$, the acceleration is __________ .

$$5\,\text{m/s}^2$$

A cheetah running $250\,\text{meters}$ in $10\,\text{seconds}$ travels at a speed of __________ .

$$25\,\text{m/s}$$

The graph of __________ vs. time produces a curved line (parabola) for falling objects.

Distance

An object in free fall falls __________ distances each second.

longer

A feather and a coin fall differently in air because of __________ .

air resistance

Jake walking $2\,\text{m/s}$ inside a train moving at $10\,\text{m/s}$ in the same direction moves at __________ relative to a person outside.

$$12\,\text{m/s}$$

__________ is defined as how fast something speeds up, slows down, or changes direction.

Acceleration

Falling down with only gravity pulling on the object is called __________ .

free fall

A space with no air at all is called a __________ .

vacuum

The push of air against a moving object that slows things down is called __________ .

air resistance

Looking at motion compared to a person or object that is standing still is called __________ motion.

relative