quiz 1 tahslil

quiz 1 tahslil

Multiple Choice

Find the uniform acceleration that causes a car’s velocity to change from 32 m/s to 96 m/s in an 8.0-s period.

• 64 m/s²
• 8.0 m/s²
• 12 m/s²
• None of the above.

Multiple Choice

A block has an acceleration of A when it is pulled; if two blocks collide and are pulled with two times the force, what is A?

• 1/4 A

• 1/2 A

• A

• 2A

Multiple Choice

What slows objects down when they are in the air?

• gravity

• air resistance

• net force

• deceleration

Multiple Choice

Newton's first law states: 

• inertia
• gravity is universal
• mass is directly proportional to acceleration
• every action has an equal and opposite reaction

Multiple Choice

Newton said that any two masses will...

• combine into a larger mass.

• attract each other.

• create gravitational fields.

• push each other apart.

Multiple Choice

What type of friction is not moving?

• static
• sliding
• fluid
• rolling

Multiple Choice

A box takes 40 N to start moving when the coefficient of static friction is .54. What is the weight of the box?

• 81 N

• 18 N

• 98 N

• 74 N

Multiple Choice

The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:

• normal

• abnormal

• static

• inertia

Multiple Choice

A spring has a spring constant of 450 N/m. How far is the spring compressed if 150 N of force are used?

• 2.2 m

• 3m

• 5.0 m

• 0.3 m

Multiple Choice

If an object is moving to the right, this force is pushing or pulling to the left:

• friction

• applied

• normal

• tension

Multiple Choice

Name the missing force....

• weight force
• normal force
• frictional force
• tension force

Multiple Choice

2. What do scalar and vector have in common?

• Scalar and vector both have magnitude and direction

• Scalar and vector both have direction

• Scalar and vector both have magnitude

• Scalar and vector are not physical quantity

Multiple Choice

A dragster starting from rest accelerates at 49 m/s². How fast is it going when it has traveled 325 m? 

• 32,000 m/s
• 6.63 m/s
• 180 m/s
• Too fast.

Multiple Choice

Assume upward is the positive direction. A stone that starts at rest is in free fall. Calculate the stone’s velocity after 8.0 s.

•  78 m/s
• -78 m/s
• 1.2 m/s
• Not enough information is provided.

Multiple Choice

A race car can be slowed with a constant acceleration of 11 m/s².
If the car is going 55 m/s, how many meters will it travel before it stops?

• 140 m
• 5.0 s
• 2.5 m
• Does Not Exist

Multiple Choice

What is the acceleration between 5.00 and 10.00 seconds?

• 0.00 m/s²
• 30.0 m/s
• 5.00 s
• 6.00 m

Multiple Choice

What does the slope of the tangent to the curve on a velocity-time graph measure?

• Average Acceleration
• Instantaneous Acceleration
• Displacement
• Velocity

Multiple Choice

Distance traveled / time elapsed is the formula for what ?

• Average velocity

• Average speed

• Instantaneous velocity

• Instantaneous speed

Multiple Choice

A person walks 70 meter east, then 40 meter west. What is the total displacement traveled by the person?

• 110 meters

• 30 meters

• 55 meters

• 30 km

Multiple Choice

A person walks 70 meter east, then 40 meter west. What is the total distance traveled by the person?

• 110 meters

• 30 meters

• 55 meters

• 30 km

Multiple Choice

It is defined as the change in position of the object.

• Distance

• Displacement

• Velocity

• Speed

Multiple Choice

What do you call the motion when objects that move without rotating?

• Rotational Motion

• Translucent Motion

• Translational Motion

• Rotating Motion

Multiple Choice

At what time does this object have a negative velocity?

• 3 seconds

• 7 seconds

• 11 seconds

• never

Multiple Choice

How fast is this object moving?

• 1 meter

• 1 meter /second

• 2 meters/second

• 4 seconds

Multiple Choice

What is the independent variable in an experiment?

• the thing we change or test
• the normal situation
• what we measure in the end
• the thing we keep the same

Multiple Choice

What quantity does the kilogram measure?

• time

• distance

• force

• mass

Multiple Choice

In scientific notation, 674.3 mm equals

• 0.6743 x 10^-3 mm

• 6.743 x 10³ km

• 6.743 x 10² mm

• 6.743 x 10² m

Multiple Select

Which of the following is the correct SI unit of temperature?

• Fahrenheit

• Celsius

• Kelvin

• Rankine

Multiple Choice

Which of the following is the correct metric prefix for 10^-6?

• milli-

• nano-

• mega-

• micro-

Multiple Choice

What is the base SI unit for measuring electric current?

• Ampere (A)

• Meter (m)

• Kilogram (kg)

• Liter (L)