Forces and Motion — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Which force pulls all objects toward Earth in Grade 3 Science?
A) Friction
B) Gravity
C) Magnetism
D) Wind
Grade 3 learners know gravity pulls every object on Earth toward the planet's center.
2. Magnetism is best described in Grade 3 Science as a ___ force.
A) Contact push
B) Non-contact force
C) Friction force
D) Gravity pull
Grade 3 Science teaches magnetism is a non-contact force that acts across a small distance.
3. Which object would a magnet attract in Grade 3 experiments?
A) Plastic spoon
B) Wooden block
C) Iron paper clip
D) Rubber eraser
Grade 3 learners know magnets attract iron and a few other metals, not plastic or wood.
4. Why do dropped objects fall in Grade 3 Science lessons?
A) Wind blows them
B) Magnets attract them
C) Gravity pulls them down
D) Friction pushes them
Grade 3 Science explains gravity is the downward pulling force that makes objects fall.
Part B: Fill in the Blank
Write the correct answer on each line.
1. Gravity is a force that pulls all objects toward Earth.
Grade 3 Science teaches gravity is always a pulling force directed toward Earth.
2. Magnetism works without touching between a magnet and metal.
Grade 3 learners know magnetism is a non-contact force that works through a small gap.
3. Magnets attract only certain metals like iron and steel.
Grade 3 Science shows magnets attract some metals, especially iron and steel.
4. Gravity and magnetism are both non-contact forces in Grade 3 lessons.
Grade 3 students learn gravity and magnetism work across space without contact.
5. A heavier object feels a stronger gravity pull than a lighter one.
Grade 3 Science shows gravity pulls harder on objects with more mass.