Motion and Force Worksheet

Which of the following is not true about motion?

• Motion can be described by an object's speed, direction, or acceleration.

• Forces do not have an effect on motion.

• Objects in motion will stay in motion until another force slows them down.

• An object will stay still until a force moves it.

Which item would require the most force to move?

• 1

• 2

• 3

• 4

Which item would require the least force to move?

• 1

• 2

• 3

• 4

The girl on the right is going to hit the tetherball. Describe the motion of the tetherball.

• The tetherball will move away from her at first, then move towards her.

• The tetherball will move toward her, then up.

• The tetherball will move toward her, then away from her.

• The tetherball will move with friction, then against friction.

Which of the following are true about mass?

• Mass does not affect gravitational pull.

• The more mass an object has, the harder it will be for the object to accelerate.

• If an object has less mass, it will be difficult for it to slow down and speed up.

• Mass and weight measure the same thing about an object.

• Mass is measured using a balance.

What force is represented by the arrow labeled B?

• Normal force

• Speed

• Friction

• Gravity

Tyler was trying to push a heavy box, but he wasn’t able to move it. His brother Timothy came over and they pushed the box together, moving it across the floor. Which statement best describes these events?

• A. Tyler could not overcome the force of gravity without Timothy also pushing the box.

• B. Only Timothy was able to overcome the force of friction.

• C. Tyler and Timothy pushing the box together changed the forces acting on the box from balanced to unbalanced.

• D. Only Timothy was able to overcome the force of gravity and friction.

Which of the following would be true if we added more books to the wagon?

• The friction between the wagon and the ground would increase.

• The person would need to apply less force to move the wagon.

• The amount of mass the person is pulling would increase.

• The direction of the wagon would change.

• Applying more force would make it easier to make the wagon move.

Imagine we added another box onto the load going down the ramp. How would it affect the force needed to move the load?

• More force would be needed to move the load because the friction increased.

• Less force would be needed to move the load because the pull of gravity increased.

• More force would be needed to move the load because the pull of gravity increased.

• Less force would be needed to move the load because the normal force increased.

A boat is floating upon a lake, motionless. Describe the forces acting upon the boat.

• The force of gravity pushing up on the boat is balanced by the boat’s weight pushing it down.

• The force of the boat’s weight pushing down on the water is greater than the force pushing upward on the boat.

• The force of gravity on the boat is equal to the upward force of the water.

• The water’s upward force is greater than the boat’s downward force.