pre-assessment force and Motion 6th grade

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.

•  

  D

  Gravity on the object can be reduced.

Tags

NGSS.MS-PS2-2

The forces acting on a box are illustrated.

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

NGSS.MS-PS2-1

A student claims that unbalanced forces acting on an object in motion can cause all of the following results:

* The object could stop moving

* The object could speed up

* The object could change directions

The best evaluation of this student’s claims is that -

• none of the claims is true.

• one of the claims is true.

• wo of the claims are true.

• all of the claims are true.

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

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.

• or a short amount of time.

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?

• 1 meter/second

• 4 meters/second

• 5 meters/second

• 20 meters/second

Tags

NGSS.MS-PS3-1

It takes five hours to drive from Fort Worth to Midland, which is a distance of 300 miles.  What would be the average speed for this trip? 

• 20 miles/hour

• 40 miles/hour

• 60 miles/hour

• 80 miles/hour