Forces and Motion Summative

While riding her bike, Aria noticed that the bike slowed down when she applied the brakes. Which force opposes the motion of her bike?

• Applied force

• Frictional force

Michael is playing with a ball on the ground. Which force keeps the ball on the ground?

• Gravitational force

• Normal force

Noah walked from his house to the park and then directly back home. What does "displacement" mean in this scenario?

• The total path traveled

• The straight-line distance from start to end

Aiden walked from his home to the park and then back home. Which of these is a vector quantity that describes his movement?

• Distance

• Displacement

Which of the following is an example of balanced forces?

• Nora's book resting on a table

• A moving train

What happens when balanced forces act on a toy car that Zoe is pushing?

• No change in motion.

• Its motion changes.

David is riding his bicycle down a straight road. He is moving at a speed of 15 km/h. What is the difference between speed and velocity?

• Speed includes direction, while velocity does not.

• Speed and velocity are the same thing.

Maya is playing with a magnet and notices that it can attract a paperclip from a distance without touching it. What type of force is this?

• A force that acts at a distance without physical contact

• The force that opposes motion

Emma is pushing a box across the floor. How can you identify a contact force in this scenario?

• A force that requires physical contact between objects.

• A force that does not follow Newton’s Laws of Motion.

Avery is driving a car and decides to speed up on a road. Which of the following is an example of unbalanced forces causing motion?

• Avery's car speeding up on a road

• A ball resting on a flat surface