6.8 BCD

A student claims that unbalanced forces acting on an object in motion can cause all of the following results: The BEST evaluation of this student's claims is that -

• none of the claims is true.

• one of the claims is true.

• two of the claims are true.

• all of the claims are true.

Tags

NGSS.MS-PS2-2

The forces acting on a box are illustrated to the left. The result of these forces will be that the box will -

• move to the right at a constant speed.

• accelerate to the right.

• move to the left at a constant speed.

• accelerate to the left.

Tags

NGSS.MS-PS2-2

An object that is at rest will begin to move if which of the following is true?

• The surface on which it rests is frictionless

• The mass of the object is sufficient

• Unbalanced forces act on the object

• Gravity on the object can be reduced

Tags

NGSS.MS-PS2-2

Which two measurements are needed in order to calculate the speed of an object in motion?

• Distance and time

• Time and mass

• Force and distance

• Volume and time

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

List the steps of the scientific method

d

e

f

c

b

a

Form a hypothesis

Analyze results

Ask a question

Conduct experiment

Draw conclusions

Communicate results

Tags

NGSS.MS-PS1-2

The simplified graph shows the motion of an object as measured and recorded in consistent units of time and distance. From the graph, it can be concluded that the object was moving -

• in an upward direction.

• faster as time went on.

• at a constant speed.

• for a short amount of time.

Tags

NGSS.MS-PS3-1

Time and distance data for a bicycle is provided in the graph. According to the data in the graph, what was the average speed of the bicycle?

• meter/second

• meters/second

• meters/second

• meters/second

Tags

NGSS.MS-PS3-1

What is happening at E?

• Stationary

• Accelerating

• Fast steady speed; moving away from the starting position

• Steady speed; returning to start position

Tags

NGSS.MS-PS3-1

What is happening at D?

• Stationary

• Accelerating

• Fast steady speed; moving away from the starting position

• Slower steady speed; moving away from the starting position

Tags

NGSS.MS-PS3-1