Honors Physics Acceleration Net Force

What property of an object describes its natural tendency to resist an acceleration?

• Weight

• Unbalanced force

• Shape

• Inertia

When comparing Object A and Object B, it is observed that Object A has a greater tendency to resist changes in its state of motion. What does this observation indicate about Object A and Object B?

• Object A is acted upon by more force than Object B.

• Object A is a solid and Object B is either a liquid or a gas.

• Object A has more inertia than Object B.

• Object A experiences a lot more friction than Object B.

Tags

NGSS.MS-PS2-2

When all individual forces acting on an object are balanced, it is the natural tendency of an object to _____.

• eventually stop

• accelerate

• either stay at rest or come to a rest position

• either speed up, slow down or keep the same speed

• keep its velocity constant (either at a zero or non-zero value)

How much force is required to keep a 4-kg object moving to the right with a constant speed of 8.0 m/s?

• 0 N

• 0.5 N

• 2.0 N

• 32.0 N

An object is at rest. What can be concluded about the forces acting upon the object?

• There are no forces acting upon the object.

• The forces that act upon the object have a strength of 0 Newton.

• There are four forces acting upon the object; they are all equal.

• The forces that act upon the object balance each other.

The diagrams below depict the individual forces acting upon an object. Each arrow represents a force and the length of the arrow represents the size of the force. Based on this information, which objects could be moving to the right at a constant speed?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-2

Which of the following can be explained using Newton’s second law of motion?

• It explains why a stationary object remains stationary.

• It explains why every force is accompanied by a reaction force.

• It explains why an object accelerates with a particular acceleration value.

Tags

NGSS.MS-PS2-2

A net force acts upon an object. What can be known for certain to be true of the object?

• The object is stationary.

• The object is accelerating.

• The object is moving with a constant speed.

Tags

NGSS.MS-PS2-2

An elevator is moving to the downward and slowing down. Which one of the following statements correctly describes the forces acting upon the elevator?

• Upward force(s) is(are) stronger than the downward force(s).

• Downward force(s) is(are) stronger than the upward force(s).

• The upward force(s) is equal in strength to the downward force(s).

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A rightward moving object is coasting to a stop along a straight, level surface. The net force acting upon the object MUST be ____.

• zero

• directed rightward

• directed leftward

• ... impossible to answer without further information.

Tags

NGSS.MS-PS2-2