Types of forces

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

The forces that need two objects to be in contact with each other are called.......

• contact forces

• non-contact forces

• electric forces

• magnetic forces

select the examples of contact forces.(tick mark the answers)

• normal reaction

• tension

• friction force

• gravitational force

• Applied Force

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 shown in this picture?

• gravitation force

• electric force

• magnetic force

• friction force

Tags

NGSS.MS-PS2-5

what kind of force is represented in the picture by

 $\overrightarrow{f}$  

• gravitation force

• electric force

• magnetic force

• friction force

Tags

NGSS.MS-PS2-4

what is the force acting in the ropes of the swing?

• tension

• normal reaction

• friction

• gravitation

what force is applied on the book by the table.(represented by R)

• normal reaction

• friction force

• magnetic force

Tags

NGSS.MS-PS2-1

what is the force used to attract the scarp iron?

• magnetic force

• tension

• electric force

• friction

Tags

NGSS.MS-PS2-3