Force and Motion

Which situation describes a body in motion?

• A girl sitting on a bench

• A car parked on the street.

• A dog running through a park.

• A boy standing on a street corner

Which line represents the displacement of a girl going to school with her mother?

• The green line

• The red line

• The black line.

• The blue line.

What does the dotted line represent?

• Displacement.

• Time.

• Trajectory.

• Velocity.

Which option provides enough information to calculate the speed of the car?

• The car moves on the right side of a highway.

• The car goes 20 km on a highway

• The car takes an hour to go 80 kilometers.

• It takes two hours for the car to reach its destination.

What type of force is shown in the image?

• A noncontact force that deforms an object.

• A contact force that deforms an object.

• A noncontact force that results in a change of position

• A contact force that results in a change of position.

What happens to the rubber band when it is stretched?

• Its shape changes.

• Its speed increases

• It changes its direction.

• Its matter varies

When a force is applied to a moving ball in the opposite direction of its motion, what will happen?

• It will change shape.

• Its speed will increase.

• It will change size

• Its speed will decrease or it will change direction

Who or what receives the force?

• The girl.

• The ground.

• The well.

• The bucket.

Which magnitude is measured in km/h?

• Trajectory.

• Time.

• Distance traveled.

• Speed.

Which describes a contact force?

• A girl pushing a box.

• A magnet attracting paper clips

• A balloon charged with static electricity attracting some paper

• A magnet repelling another magnet.