Forces and Fields
What is the area around a magnet where it can affect magnetic materials called?
What is a magnetic field
What happens when an object gains electrons?
What is it becomes negatively charged
What device is used to measure electric current?
What is a Ammeter
What unit is used to measure resistance?
What are Ohms, symbolized by Ω
What is an electromagnet?
What is A coil of wire with an electric current flowing through it
What type of field surrounds an object with mass?
What is a Gravitational Field
What types of charges attract each other?
What is opposite charges
How is an ammeter connected in a circuit?
What is a series
What happens to current if resistance increases and voltage stays the same?
What is the current decreases
How can you make an electromagnet stronger?
What is Increase the number of coils, increase the current, or use an iron core
What is the formula to calculate the weight of an object?
What is Weight = Mass × Gravitational field strength
What is the area around a charged object where it can attract or repel other charges called?
What is an electric field
What is voltage a measure of?
What is the energy provided by a cell or transferred by a component
How does the length of a wire affect its resistance?
What is Longer wires have higher resistance
What happens to a wire carrying current when it crosses a magnetic field?
What is It experiences a force
What does gravitational potential energy depend on?
What is The object's mass and height above the ground
What happens to an atom if it loses electrons?
What is it becomes positively charged
How is voltage measured in a circuit?
What is Using a voltmeter connected in parallel
How does the thickness of a wire affect its resistance?
What is Thicker wires have lower resistance
What are the main parts of an electric motor?
What is A coil of wire and a magnetic field
How does the strength of a gravitational field change with mass and distance?
What increases with larger mass and decreases with greater distance
What does the direction of arrows in an electric field diagram show?
What is the direction a positive charge would move
What is the difference between series and parallel circuits?
What is In series, components are connected in a single loop; in parallel, they are connected in separate branches.
What is the formula to calculate resistance?
What is Resistance = Voltage ÷ Current
How can you increase the speed of a motor?
What is Increase the current, the magnetic field strength, or the number of turns of wire on the coil