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WorksheetsScience Quiz
Total questions: 20
Worksheet time: 10mins
What does Newton's Law of Gravitation state?
Only large masses attract smaller masses with a constant force.
Every mass repels every other mass with a force proportional to their distances.
Gravitation only affects objects in motion, not stationary ones.
Every mass attracts every other mass with a force proportional to their masses and inversely proportional to the square of the distance between them.
Which force pulls objects towards each other?
Gravity
Magnetism
Electromagnetism
Friction
What is the unit of gravitational force?
Joule (J)
Kilogram (kg)
Newton (N)
Pound (lb)
What are the two types of magnetic poles?
Positive Pole and Negative Pole
East Pole and West Pole
Magnetic North and Magnetic South
North Pole and South Pole
What happens when two like magnetic poles are brought together?
Like magnetic poles generate electricity.
Like magnetic poles attract each other.
Like magnetic poles repel each other.
Like magnetic poles create a neutral force.
What is the area around a magnet where magnetic forces can be felt called?
magnetic field
magnetic core
magnetic zone
magnetic region
What is frictional force?
Frictional force is the force that acts only when surfaces are not in contact.
Frictional force is the force that enhances the relative motion of two surfaces in contact.
Frictional force is the force that opposes the relative motion of two surfaces in contact.
Frictional force is the force that pulls two surfaces together without any motion.
What are the two main types of friction?
Air resistance and gravitational friction
Fluid friction and surface friction
Static friction and kinetic friction
Sliding friction and rolling friction
How does friction affect motion?
Friction increases the speed of moving objects.
Friction opposes motion and can slow down or stop moving objects.
Friction has no effect on motion.
Friction only occurs in liquids and gases.
Which force is responsible for keeping planets in orbit?
Centrifugal force
Gravitational force
Electromagnetic force
Nuclear force
True or False: Gravitational force is stronger than magnetic force.
True
Gravitational force is weaker than magnetic force
False
Magnetic force is always stronger than gravitational force
True or False: All magnets have a north and south pole.
All magnets only have one pole.
Some magnets do not have poles at all.
True
Magnets can have multiple north poles.
True or False: Friction always helps in motion.
False
Friction is always beneficial for speed.
Friction has no effect on motion.
Friction only hinders movement in water.
True or False: The gravitational force depends on the mass of the objects and the distance between them.
False
True
Only depends on distance
Only depends on mass
True or False: Magnetic fields can exist without a magnet.
True
Only in superconductors
False
Only in the presence of electric fields
True or False: Friction can be both helpful and harmful.
Friction is always harmful.
True
Friction can only be helpful.
Friction has no impact on motion.
True or False: The Earth’s gravity pulls everything towards its center.
False
True
The Earth’s gravity pushes everything away from its center.
Gravity only affects large objects like planets.
True or False: Magnetic forces can attract and repel.
Magnetic forces can only repel.
Magnetic forces have no effect on objects.
True
Magnetic forces can only attract.
True or False: Frictional force increases with the smoothness of surfaces.
Frictional force decreases with the roughness of surfaces.
Frictional force is unaffected by surface texture.
Frictional force is always greater on smoother surfaces.
False
True or False: The strength of a magnetic field decreases with distance from the magnet.
The strength of a magnetic field increases with distance from the magnet.
The strength of a magnetic field remains constant regardless of distance.
False
True
