Force and Motion

Front

What question were they most likely trying to answer?

• Does the mass of a car affect the change in motion?
• Does the force on a car affect the change in motion?
• Does the distance the car travels affect the time?
• Does the mass of a car affect the distance the car travels?

Back

Does the force on a car affect the change in motion?

Front

What is the motion of the car in section “D” of the graph?

Back

The car is stopped in section “D”.

Front

Which car won the race?

Back

Car 1

Front

What would most likely happen to the motion of the box if you poured oil on the ramp?

Back

It will speed up the box because the force of friction will be reduced.

Front

What will magnet “B” do if it is free to move? Options: The force of gravity will pull it to the left, The force of gravity will push it to the right, The magnetic force will pull it to the left, The magnetic force will push it to the right.

Back

The magnetic force will pull it to the left.

Front

What was the most likely trying to model? Options: The speed of a car, The forces acting on a car, The distance a car might move, The things that change the size of a car

Back

The forces acting on a car.

Front

If an unbalanced force acts on an object at rest, the object will move in the direction of the force. Which of the following best models an object with unbalanced forces acting on it?

Back

Front

What should be used as the independent variable to determine the effect of changing the mass of an object when an unbalanced force is applied? Options: time, force, mass, speed.

Back

mass

Front

How should he make the graph of his data?

Back

He should make a line graph with mass on the “X” axis and distance on the “Y” axis.

Front

Which hypothesis will most likely be supported by the results of the investigation?
Options:
1. When a balanced force is applied the block with the greatest mass will move fastest.
2. When an unbalanced force is applied the block with the least mass will move fastest.
3. When a balanced force is applied the speed of the object will not change.
4. When an unbalanced force is applied the speed of the object will not change.

Back

When a balanced force is applied the speed of the object will not change.