WorksheetsEarth's Forces Review
Total questions: 20
Worksheet time: 11mins
Which is NOT one of Earth's common forces?
gravity
friction
magnetism
orbit
What does Newton's Law of Universal Gravitation say?
a force that pulls objects towards it
You exert an attractive force on everything that is around you and everything is also exerting an attractive force on you.
a force that opposes motion
the position an object moved in relation to its reference point
Which objects have gravity? Check all that apply.
basketball
water
hotel
planet Venus
Which two factors affect the attraction of gravity between two objects?
speed and distance
distance and time
mass and distance
distance and motion
True or False: If the mass of an object increases the force of gravity decreases.
True
False
Which object would have the greater gravitational pull?
tennis ball
penny
Oak Tree
Planet Venus
What is friction?
the distance an object moves
the force that one object puts on another
a force that opposes motion
the force that pushes and pulls magnetic objects
Which object has the most friction?
ice skating rink
Drag race strip
True or False: The greater the mass of an object, the more force is needed to overcome the friction.
True
False
Which type of friction is presented in the image?
static
sliding
rolling
fluid
The invisible space, electrical current, around a magnet is called?
atom
copper
gravity
magnetic field
Which two poles does a magnet have?
North and South
North and West
South and East
South and West
True and False: Opposite poles attract one another.
True
False
Check all that apply: Which objects are magnetic?
water
nickel
iron
steel
What does Earth's magnetic field protect us from?
asteroids
harmful solar radiation
wind
magma
What is force?
a push or a pull
the motion of an object
the force that opposes motion
the force that pushes and pulls magnetic objects
Isaac Newton developed his Law of Universal Gravitation from an experience he had under what type of tree?
pear
pine
apple
acorn
What is speed?
the motion of an object
an indicator that appears to stay in place
the distance traveled by an object divided by the time taken to travel that distance
the push and pull of an object
True or False: Plotting distance vs. time can tell us a lot about motion.
True
False
Which object must overcome the most friction?
pushing a textbook across a desk
pushing a small paperback book across the test
a box filled with textbooks across a desk
a pencil across a desk
