4.2 Electrostatic and gravitational fields

There are two types of electric charges....

• positive
• negative
• up

• down

• neutral

Which diagram(s) show the correct electric field around a charge?

• 
• 
• 
• 
• 

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

For a positive charge the arrows always flow ​ (a)   . For a negative charge the arrows always flow ​ (b)   .

• outwards
• inwards
• in a circle
• upwards
• downwards
• clockwise
• anticlockwise

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

At which point is the electric field the strongest?

• A
• B
• C
• D

Tags

NGSS.HS-PS3-5

Consider the electric field lines shown in the diagram below. From the diagram, it is apparent that object A is ​ (a)   ​ and object B is ​ (b)  

• - ve
• neutral
• + ve

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Which graph best represents the relationship between the strength of an electric field and distance from a point charge?

• 
• 
• 
• 

Tags

NGSS.HS-PS3-5

What does it mean when the electric field lines are close together?

• the field is positive
• the field is negative
• The field is strong
• the field is weak

In the diagram below, P is a point near a negatively charged sphere. Which direction best represents the direction of the electric field at point P?

• Right
• Left
• Up 
• Down

Tags

NGSS.HS-PS3-5

Which of the following statements is false about electric field lines

• electric field lines cannot cross
• electric field lines point away from positive charge
• electric field lines are always straight lines
• electric field lines show how a proton would move in an electric field

Which definition is correct?

• Electric potential energy is the acceleration of an object due to its position in a Electric field.

• Electric potential energy is the energy of an object due to its position in a magnetic field.

• Electric potential energy is the energy of an object due to its position in the field.

• Electric potential energy is the energy of an object due to its position in a Electric field.