Level 1
What do we call the building blocks of all matter?
atoms
________ is a material that readily allows electric charges to pass through.
conductor
Particles with the same charge ___________ one another.
repel
A train is moving at a speed of 80 kilometers per hour. How long will it take to travel 320 kilometers?
Time = Distance ÷ Speed
Time = 320 km ÷ 80 km/h = 4 hours
Particles with opposite charges ____________ one another.
attract
proton,neutron and electron
Liam rode his bike at a speed of 15 kilometers per hour. He biked for 2 hours.
Question: How far did Liam travel?
Distance = Speed × Time
Distance = 15 km/h × 2 h = 30 kilometers
A bus traveled 180 kilometers in 3 hours.
Question: What was the average speed of the bus?
Speed = Distance ÷ Time
Speed = 180 km ÷ 3 h = 60 kilometers per hour
Ella walked a total distance of 6 kilometers at a speed of 3 kilometers per hour.
Question: How long did it take Ella to finish her walk?
Time = Distance ÷ Speed
Time = 6 km ÷ 3 km/h = 2 hours
A type of circuit with several different paths for the charges to follow.
parallel circuit
What will happen if an atom with 9 protons and 9 electrons gains an electron?
The atom will have a charge of -1.
Draw an closed circuit. Make sure it has a battery, light bulb, switch, and wire.
*check the drawing*
A type of circuit that has only one path for electric charges to follow.
series circuit
Draw an open circuit. Make sure it has a battery, light bulb, switch, and wire.
*check the drawing*
What type of circuit is described if the light stays on when the switch is closed?
Closed circuit
What type of circuit is described if the light stays off when the switch is open?
Open circuit
What is the difference between an open circuit and a closed circuit?
Open circuit- the path is broken and charges cannot flow.
Closed circuit - the path has no break in it's path.
TRUE OR FALSE
When you brush your hair, electrons move from each strand of hair to the brush.
TRUE
A ________ is a path along which electric charges can flow.
circuit
An _______ is a material that resists the flow of electrons.
insulator
If a neutral atom loses an electron, the number of protons will no longer balance the number of electrons. What will be the charge of that atom?
The atom will have a charge of +1
Where can you find protons and neutrons in the atom? Spell it correctly.
nucleus
TRUE or FALSE
Positive charges form at the top of a cloud and on the ground. Negative charges form near the bottom of a cloud.
True
What do we call the jumping of electrons?
electrostatic discharge
What do we call the property of a particle that affects how other particles behave around each other?
electric charge