what is a force?

• a push or a pull

• change in displacement

• change in direction

which of these is an effect of force?(tick mark the correct answers)

• force can start a motion

• force can stop a motion

• force can change the direction of motion

• force can change the shape of an object

• force can change the speed a moving object

Tags

NGSS.MS-PS2-2

select the non contact forces.(tick mark your answers)

• gravitational force

• electric force

• magnetic force

• friction force

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

what kind of force is represented in the picture by

 $\overrightarrow{f}$  

• gravitation force

• electric force

• magnetic force

• friction force

what is the force used to attract the scarp iron?

• magnetic force

• tension

• electric force

• friction

Tags

NGSS.MS-PS2-3

what force is pulling the apple down?

• gravitational force

• tension

• normal reaction

Tags

NGSS.MS-PS2-2

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what is the force shown in the picture?

• magnetic force

• electric force

• applied force

Tags

NGSS.MS-PS2-3

What force ultimately slows the roller coaster to a stop?

• Applied

• Normal

• Friction

• Gravitational

Tags

NGSS.MS-PS2-2

Look at the illustration below of a block sitting on a table-top. The magnified view illustrates a force that exists between the two objects.

Which type of force is demonstrated in the magnified view?

• normal force

• applied force

• gravitational force

• frictional force

When we throw anything in air it always falls down because of _____

• Friction

• Gravity

• Solid

• motion

Tags

NGSS.MS-PS2-4