Lesson T7.1.2
T7.1.2 Gravity between Earth, Moon and Sun Quiz: KS3 Physics, Unit 7
20 questions
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Lesson T7.1.2, Gravity between Earth, Moon and Sun: 20 multiple choice questions for the KS3 Physics (National Curriculum), Unit 7: Space physics, written with Revision Ninja.
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The 20 questions
-
What force keeps the Moon moving around Earth?
- Friction
- Electrostatic force
- Gravity
- Magnetism
-
What does gravitational force between two objects depend on?
- Volume and density
- Speed and mass
- Temperature and size
- Mass and distance
-
What happens to the gravitational force between objects as distance increases?
- It stays constant
- It gets stronger
- It drops to zero
- It gets weaker
-
Which force keeps Earth in orbit around the Sun?
- Magnetic pull
- Solar gravity
- Solar wind pressure
- Air resistance
-
What causes ocean tides on Earth?
- Earth's magnetic field
- The Moon's gravity
- Atmospheric pressure
- Ocean currents
-
Which gravitational pull on Earth is larger?
- They are equal
- Mars' pull
- The Moon's pull
- The Sun's pull
-
Why does the Moon not fall straight down onto Earth?
- Zero mass
- High temperature
- Sideways speed
- Magnetic repulsion
-
What holds the planets in orbit around the Sun?
- Centrifugal force
- Solar magnetism
- Planetary friction
- Sun's gravity
-
What is a key property of gravitational force?
- Always repulsive
- Magnetic
- Always attractive
- Electrostatic
-
How do Earth and the Moon interact gravitationally with one another?
- They attract mutually
- They repel each other
- Earth pulls only
- Moon pulls only
-
Why is surface gravity weaker on the Moon than on Earth?
- Higher speed
- Stronger magnetism
- Lower mass
- Greater distance
-
A satellite orbits Earth at a greater distance than before. What happens to the gravitational force on it?
- It gets weaker
- It is unchanged
- It becomes zero
- It gets stronger
-
What is a direct result of the Sun's gravity on planets?
- Volcanic activity
- Planetary rotation
- Magnetic fields
- Orbital motion
-
Why has the Moon a stronger tidal effect than the Sun?
- It spins faster
- It is heavier
- It is closer
- It is hotter
-
Which of these is NOT a gravitational interaction?
- Sun and Earth
- Magnet and clip
- Earth and Moon
- Apple and tree
-
How does the Sun-Earth gravitational force compare to the Moon-Earth force?
- Negligible
- Exactly equal
- Much smaller
- Much greater
-
What type of force is gravity between objects?
- Contact force
- Frictional force
- Magnetic force
- Non-contact force
-
Why do astronauts float inside the International Space Station?
- Magnetic repulsion
- Atmospheric drag
- Zero gravity
- Free fall
-
What would happen to Earth's orbit if the Sun's gravity weakened?
- Move further away
- Stop moving entirely
- Orbit much faster
- Crash into Sun
-
What causes ocean tides on Earth primarily?
- Moon's gravity
- Earth's rotation speed
- Ocean wind currents
- Sun's magnetic field
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