Fill In
____ orbiting the nucleus are easily lost or gained
Earths Gravitational pull keeps...
A. objects on earth B. objects off earth
Answer: (A) objects on earth
What does a compass detect?
Answer: Earth's magnetic field
A negative charge of -1.0 C and a positive charge of 2.0 C are separated by 1 m. What is the force between the two charges.
Answer: 1.8 x 10^10 N
The ____ and ____ are buried deep in the nucleus and cannot easily be moved.
Answer: Protons; neutrons
What atomic particle is the only one that is easily transferred?
A. Protons B. Neutrons
C. Nucleus D.Electrons
Answer: (D) Electrons
When moving a magnet through coils of wire, what does that induce?
Answer: electric fields
A negative charge of -2.0 C and a positive charge of 3.0 C are separated by 80 m. What is the force between the two charges?
Answer: 8437500 N
When measuring distance between two charges, the distance is measured from _____ __ _____
Answer: center to center
A device that converts electrical energy into mechanical energy is called...
A) Electric Current B) Solenoid
C) Electric Motor D) Electromagnet
Answer: (C) Electric Motor
When the distance is greater between two objects. What happens to the gravitational force?
Answer: Decreases
What is the magnitude of the force a 1.4 C charge exerts on a 2.5 C charge 0.06 m apart?
Answer: F= 8.75 x 10^12 N
Opposite charges ____________, while like charges ______________.
Answer: Attract; Repel
A metal object that acts as a magnet when an electric current moves through it is called...
A) Electromagnetism B) Magnetic Field Lines
C) Electromagnet D) Solenoid
Answer: (D) Solenoid
What are two ways to increase the amount of Gravitational Force?
Answer: Increase Mass, Decrease Distance
A negative charge of -0.0005 C exerts an attractive force of 9.0 N on a second charge that is 10 m away. What is the magnitude of the second charge?
Answer: q2 = 0.0002 C
The more mass an object has, the _____ ___ ____
Answer: greater gravitational force
What is a key point for electromagnetic induction?
A) Electric field induces magnetic fields
B) A battery must be on for the electric current needed to produce a magnetic field
C) A moving magnetic field induced electric current
Answer: (C) A moving magnetic field induced electric current
What is the difference between Gravitational field and Gravitational force?
Answer = Gravitational field is generated by any object with mass
Gravitational force exists when an object with mass is in a gravitational field generated by another objects mass
Two negative charges that are both -3.0 C push each other apart with a force of 19.2 N. How Far apart are the two charges?
Answer: d= 64951.91m