1.What is the direction of the net force on a satelite moving in a circular orbit around Earth?

aTangentially,in the same direction as the satellite's motion

bRadially Inward,toward the centre of Eart

cRadically outward,away from the centre of Earth

dTangentially,in the opposite direction as the satellite's motion

3.A solid copper sphere is given an electric charge.How does the charge distribute across the copper sphere? aAll the charge is concentrated in the centre of the sphere

bThe charge is most concentrated in the centre and becomes less concentrated at the outer surface

cAll the charge sinks to the lower half of the sphere

dAll the charge is distributed around the outer surface of the sphere

4.Two protons attract each other through the force of gravity,but repel each other through the force of electricity.Which force is stronger when the protons are separated by a small distance?

aThe Gravitational Force

bThe Electrostatic Force

cBoth Forces are always equal in magnitude

dThe answer depends on the energy of protons

5.The electric field due to two oppositely charged point particles a dipole has its magnitude

aCloset to either of the Charges

bExactly between the charges

cAnywhere on the line connecting the two charges

dVery far away from the charges

6.A charged particle enters a magnetic field with a speed v and experiences a force of magnitudr F.Determine the magnitude of the force on this particle if it enters the same magnetic field in the same direction,but with a speed 3v.

aF b3F c9F d18F