Exploring Motion and Buoyancy

What is the force that pulls objects toward the center of the Earth?

• Friction

• Gravity

• Magnetism

• Buoyancy

Which of the following objects will float in water?

• A rock

• A metal spoon

• A wooden log

• A glass marble

What is the term for the upward force that water exerts on an object?

• Gravity

• Friction

• Buoyancy

• Magnetism

If you drop a ball and a feather from the same height at the same time, which will hit the ground first in a vacuum?

• The ball

• The feather

• Both at the same time

• Neither will hit the ground

What happens to an object’s speed when it is moving downhill?

• It stays the same

• It decreases

• It increases

• It stops

Which of the following is an example of motion?

• A car parked in a garage

• A bird flying in the sky

• A book on a shelf

• A tree standing still

What is the term for the resistance that one surface or object encounters when moving over another?

• Gravity

• Friction

• Buoyancy

• Magnetism

Which of the following will sink in water?

• A plastic bottle

• A rubber duck

• A steel nail

• A piece of cork

What is the effect of gravity on a ball thrown into the air?

• It makes the ball go faster

• It pulls the ball back to the ground

• It makes the ball float

• It has no effect

Which of the following best describes buoyancy?

• The force that pulls objects toward the Earth

• The force that pushes objects upward in a fluid

• The force that slows down moving objects

• The force that keeps objects in place