Weekly Assessment 5 (Force and Motion)

A car is moving in a straight line at a constant speed. Suddenly, a strong wind starts blowing against the direction of the car's motion. What will likely happen to the car's speed?

• The car's speed will increase.

• The car's speed will decrease.

• The car's speed will remain the same.

• The car will stop immediately.

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DOK Level 3: Strategic Thinking

Two students are pushing a box in opposite directions with equal force. What will be the net force on the box, and what will happen to the box?

• The net force will be zero, and the box will not move.

• The net force will be zero, and the box will move.

• The net force will be greater than zero, and the box will move.

• The net force will be greater than zero, and the box will not move.

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DOK Level 3: Strategic Thinking

A ball is rolling on a flat surface and eventually comes to a stop. Which of the following best explains why the ball stopped?

• The ball ran out of energy.

• The gravity and friction acted on the ball that make it stop.

• The ball's mass increased.

• The ball's speed was too high.

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DOK Level 3: Strategic Thinking

If a moving object collides with a stationary object or an object that is not moving and comes to a stop, what happens to the energy of the moving object?

• The energy disappears.

• The energy is transferred to the stationary object.

• The energy is destroyed.

• The energy remains with the moving object.

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DOK Level 3: Strategic Thinking

A toy car is pushed and starts moving. If no other forces act on it, what will happen to the car's motion?

• The car will keep moving at the same speed and direction.

• The car will slow down and stop.

• The car will speed up.

• The car will change direction.

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DOK Level 3: Strategic Thinking

Which of the following scenarios best illustrates the concept of net force?

• A book resting on a table.

• A person pushing a car that doesn't move.

• A soccer ball being kicked and changing direction.

• A leaf falling from a tree.

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DOK Level 3: Strategic Thinking

A skateboarder is moving at a constant speed. If the skateboarder suddenly stops pushing, what will happen to the skateboard's motion?

• It will continue moving at the same speed.

• It will gradually slow down and stop.

• It will speed up.

• It will change direction.

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DOK Level 3: Strategic Thinking

When a moving object hits a wall and stops, what happens to the object's kinetic energy?

• It is transferred to the wall.

• It is destroyed.

• It remains with the object.

• It disappears.

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DOK Level 3: Strategic Thinking

If two forces are acting on an object in the same direction, how do you determine the net force?

• Subtract the smaller force from the larger force.

• Add the two forces together.

• Divide the larger force by the smaller force.

• Multiply the two forces.

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DOK Level 3: Strategic Thinking

A ball is thrown upwards. What happens to its speed as it rises?

• The speed increases.

• The speed decreases.

• The speed remains constant.

• The speed becomes zero immediately.

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DOK Level 3: Strategic Thinking