Gravity
Gravity 2
Electricity
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100
A motorcycle weighs 2,009 newtons. The mass of the motorcycle is _____ kilograms. Use g = 9.8 N/kg for gravity.
205
100
Jupiter--->Venus--->Neptune--->Mars
100
Jack tries to place magnets on his refrigerator at home, but they won’t stick. What could be the reason?
A. The body of the refrigerator isn’t made of magnetic material.
B. Earth’s magnetic field is interfering.
C. The magnet and the body of the refrigerator have like poles.
D. The refrigerator isn’t plugged into an electrical outlet.
A. The body of the refrigerator isn’t made of magnetic material.
200
A car has a mass of 1,000 kilograms. The weight of the car is ______ newtons. Use g = 9.8 N/kg for gravity.
9800
200
A meteor is approaching Earth. Which statement about its motion is true?
A. The meteor travels upward relative to Earth.
B. The meteor accelerates.
C. The meteor is out of Earth’s gravitational force field.
D. The meteor falls with a constant velocity.
B. The meteor accelerates.
200
Identify the charges that are negative.
300
Will is a scientist. He’s designing a spacecraft that would allow people to land on Mars. Will’s mass on Earth is 75 kilograms.
Will knows that the gravitational pull of Mars is less than the gravitational pull of Earth. When he lands on Mars, his mass will be [equal to] [greater than] [less than] 75 kilograms. His weight on Mars will be [equal to] [greater than] [less than] his weight on Earth.
Equal to
Less than
300
Which projectiles will be visibly affected by air resistance when they fall? (select two)
- balloon
- leaf
- brick
- rock
Balloon
Leaf
300
An object that’s [negatively] [neutrally] [positively] charged has more electrons than protons. An object that’s [negatively] [neutrally] [positively] charged has fewer electrons than protons. An object that’s [negatively] [not] [positively] charged has the same number of electrons and protons.
Negatively
Positively
Not
400
Which gravitational force field diagram is drawn correctly?
400
400
Identify the area on the image where the force of attraction is the strongest.
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