Physics test 1

Velocity is a ..............quantity

• scalar

• Vector

• both scalar and vector

The total length of an object's path is known as ____.

• displacement

• distance

• velocity

• motion

Complete the following statement: "When acceleration is negative, ..."

• the object is decreasing speed

• velocity is constant

• there is no change in velocity

• velocity is negative in direction

A bike travels at a constant speed of 4.0 m/s for 5.0 s. How far does it go?

• 0.8 m

• 1.3 m

• 9.0 m

• 20. m

A race car's velocity increases from 4.0 m/s to 36 m/s over a 4.0-s time interval. What is its average acceleration?

• 9.0 m/s²

• 1.0 m/s²

• 8.0 m/s²

• 10. m/s²

How long will it take a car to accelerate from 15.2 m/s to 23.5 m/s if the car has an average acceleration of 3.2 m/s²?

• 0.386 s

• 2.59 s

• 26.6 s

• 703 s

Time is usually graphed on which of the following?

• the y-axis

• the x-axis

• the trend line

• a stop watch

Which law best describes inertia

• 1

• 2

• 3

• All of the above

Object tendency to resist change

• Friction

• Inertia

• Forcé

• Gravity

The picture is an example of Newton's...

• 1st Law

• 2nd Law

• 3rd Law

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