Magnetic Force RHR

What direction is magnetic force on a POSITIVE moving particle in the magnetic field?

• +x

• -x

• +y

• -y

Answer explanation

Fingers point up and thumb points into the page -> palm points right (+x)

Tags

NGSS.HS-PS3-5

What direction is magnetic force on a NEGATIVE moving particle in the magnetic field?

• +x

• -x

• +y

• -y

Answer explanation

Fingers point up and thumb points into page -> palm points right. BUT it is a negative particle, so the force is to the left (-x)

Tags

NGSS.HS-PS3-5

What direction is magnetic force on a POSITIVE moving particle in the magnetic field?

• +x

• -x

• +y

• -y

Answer explanation

Fingers point into page and thumb points right -> palm up (+y)

Tags

NGSS.HS-PS3-5

What direction is magnetic force on a NEGATIVE moving particle in the magnetic field?

• +y

• -y

• +z

• -z

Answer explanation

Fingers point left and thumb points out of page -> palm points down (-y), but NEGATIVE particle so forces is in the +y direction

Tags

NGSS.HS-PS3-5

What is the direction of the velocity of a POSITIVE charge in the shown magnetic field and experiencing the same force.

• +x

• -x

• +y

• -y

Answer explanation

Fingers point out of page and palm points up -> thumb points left (-x)

Tags

NGSS.HS-PS3-5

What is the direction of the velocity of a POSITIVE charge in the shown magnetic field and experiencing the same force.

• +x

• -x

• +z

• -z

Answer explanation

Fingers point right and palm points up -> thumb points out of page (+z)

Tags

NGSS.HS-PS3-5

What is the direction of the velocity of a NEGATIVE charge in the shown magnetic field and experiencing the same force.

• +y

• -y

• +z

• -z

Answer explanation

Fingers point into page and palm points left -> thumb points up (+y), but NEGATIVE particle so -y.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the direction of the magnetic field acting on a POSITIVE charge moving with a velocity v and experiencing a force F?

• +y

• -y

• +z

• -z

Answer explanation

Thumb points up and palm points left -> fingers point into page (-z)

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the direction of the magnetic field acting on a NEGATIVE charge moving with a velocity v and experiencing a force F?

• +x

• -x

• +y

• -y

Answer explanation

Palm points into page and thumb points down -> fingers point left (-x), but NEGATIVE particle so points +x.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the direction of the magnetic field acting on a POSITIVE charge moving with a velocity v and experiencing a force F?

• +y

• -y

• +z

• -z

Answer explanation

Palm up and thumb left -> fingers point out of page (+z)

Tags

NGSS.HS-PS3-5