- Magnetic force is measured in milliTesla. Which of the following measurements could be true if we took a reading 1 cm from a strong magnet and 1 cm from a weak magnet and compared them?
- When two magnets are held near each other but not released which of the following is true?
- The space around a magnet where magnetic forces can act on objects
- A set of interacting parts forming a complex whole.
- In a system of magnets, there is a repelling force with ______ poles.
- in a system of magnets, there is a repelling force between like poles and an attracting force between _____________________________ poles
- A spaceship is traveling through space. Suddenly, its speed increases. What can you say about the kinetic energy of the spaceship?
- In a system of two attracting magnets, in order to move the magnets against the magnetic force, the magnets must be moved...
- When a compass is near a bar magnet, what happens to a compass needle as you move the compass around?
- heat from inner core causes liquid _______________to move producing a magnetic field around the ___________________
- Connects the opposite magnetic poles; north pole to south pole.
- a magnetic force can _______________________ or ________________________ an object at a distance.
- A magnetic force can attract and repel an object at a distance.
- Why is the magnetic field produced by a solenoid stronger than that of a single wire for the same amount of current?
- What object allow light through it but scatters the light so the rays change direction and an image cannot be seen through it?
- What objects allow light to be transmitted without changing direction of movement?
- if the image is smaller than the object, the magnification is?
- the nearer the object is to the lens, what happens to the image
- what is formed when the object is nearer to the lens than the principal focus
- when each point on the wavefront reaches the barrier, what does it create?