Forces Test

A shovel has a mass of 4.5 kilograms. What net force, to the nearest whole Newton, will a person need to apply to accelerate the shovel at a rate of 6.0 m/s²?

Mathematical Equivalence

ON

Tags

NGSS.MS-PS2-2

What is the net force on an object if a 15N force pushes right and a 10N force pushes left?

• 5N right

• 25N right

• 5N left

• 15N right

Tags

NGSS.MS-PS2-2

According to Newton's First Law, an object in motion stays in motion unless:

• Gravity acts upon it

• A net force acts upon it

• It reaches maximum velocity

• It maintains constant acceleration

Tags

NGSS.MS-PS2-2

Four students designed and built air-propelled rockets that were launched into the air. Their data is recorded in the picture of the table. Which rocket had the greatest acceleration?

• Rocket 1

• Rocket 2

• Rocket 3

• Rocket 4

Tags

NGSS.MS-PS2-2

A student pushes a 51.5kg bookshelf across a smooth floor with a net force of 67N. What is the approximate acceleration of the bookshelf?

• 1.3 m/s²

• 3450.5 m/s²

• 15.5 m/s²

• 0.77 m/s²

Tags

NGSS.MS-PS2-2

The diagram shows a duck swimming in a stream in the opposite direction the stream is flowing. The duck pushes against the water, so the water pushes the duck forward with 20N of force. The water also exerts 15N of resistive force against the duck.

Which statement best describes the resulting motion of the duck?

• The duck will stop moving.

• The duck will stop and then start moving again.

• The duck will continue moving in its current direction.

• The duck will move in the direction that the stream is flowing.

Tags

NGSS.MS-PS2-2

When the force on a car is doubled, the acceleration is doubled.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

Tags

NGSS.HS-PS2-1

Which law describes this picture?

• Newton's First Law
• Newton's Second Law
• Newton's Third Law

Calculate the net force when a 30N force acts North and a 30N force acts South:

• 60N North

• 0N

• 30N North

• 30N South

Tags

NGSS.MS-PS2-2

What is the mass of an object if a force of 24N causes it to accelerate at 3m/s²?

Mathematical Equivalence

ON

Tags

NGSS.MS-PS2-2