Force and Motion Review

Force and Motion Review

Remember, you have the Unit Test on Tuesday, Feb 2nd.

Your test will have questions on Balanced and Unbalanced Forces

Multiple Choice

If the forces on an object are balanced, then -

• the object's position will change

• the object's motion will stay constant

• the object will be at rest

• the object's motion will change

Multiple Choice

If the forces on an object are unbalanced, then

• the object's motion will change

• the object's motion will remain constant

• the object will speed up

• the object will be at rest

Multiple Choice

The force acting on a bird sitting in a tree are -

• Balanced

• Unbalanced

Multiple Choice

The forces acting on a car that was traveling at 6o km/h but is now coming to a stop are

• Balanced

• Unbalanced

Your test will have several questions about Inclined Plans

https://www.youtube.com/watch?v=igrMlzHL-qg&feature=youtu.be

Multiple Choice

The illustration shows a wooden block being pulled up an inclined plane with a spring scale. What change in the experimental setup would require more force to pull the block up the inclined plane?

• Using a much longer inclined plane

• Pulling the wooden block more quickly

• Reducing the mass of the wooden block

• Increasing the height of the inclined plane

Multiple Choice

What is a disadvantage of using an inclined plane to lift a heavy object?

• The object must be moved a greater distance.

• It takes less effort to move the object.

• Many objects are difficult to lift straight up.

• Heavy objects usually take up more space.

Multiple Choice

Which of the following decreases when an object is moved using an inclined plane?

• The distance the object moves

• The pull of gravity on the object

• The force needed to move the object

• The amount of space the object occupies

Multiple Choice

Which of the following will require the least force to move the load up the inclined plane?

Multiple Choice

Which of the following will require the greatest force to move the load up the inclined plane?

Your test will have questions that ask you to calculate average speed.

Multiple Choice

If an object travels 42 meters in 6 seconds, what is its average speed?

• 6 m/s

• 7 m/s

• 42 m/s

• 252 m/s

Multiple Choice

What is the average speed of a toy car that travels 240 cm in one minute?

• 4 centimeters per second

• 15 centimeters per second

• 40 centimeters per second

• 240 centimeters per second

Multiple Choice

A student walks 2 km in 30 minutes. What is the student’s average speed in km/h (kilometers per HOUR)?

• 0.07 kilometers per hour

• 4 kilometers per hour

• 15 kilometers per hour

• 60 kilometers per hour

Your test will have LOTS of questions that require you to read and use a Distance -Time Graph.

Multiple Choice

A golfer collected data on the distance a golf cart traveled in a straight line and pltted it on a graph. Which of the following does NOT describe the cart's motion on this graph?

• The cart moved 24 m away from the starting point between 2 s and 5 s

• The cart moved toward the starting point between 7 s and 12 s.

• The cart moved 11 m toward the starting point between 8 s and 11 s.

• The cart stopped moving for 4 seconds.

Multiple Choice

What was the average speed of the bike rider between 0 s and 2 s?

• 2 km/h

• 10 km/h

• 15 km/h

• 30 km/h

Multiple Choice

What was the average speed of the bike rider between 3 hours and 4 hours?

• 2.5 km/h

• 10 km/h

• 30 km/h

• 40 km/h

Multiple Choice

Which graph shows a car that is stopped?

Multiple Choice

Which graph shows a car that is moving away from the starting point at a constant speed?

Multiple Choice

Which graph shows a car that is returning to the stariting point?

Multiple Choice

Which graph shows a car that is decreasing in speed?

Multiple Choice

A student walks 2 km in 30 minutes. What is the student’s average speed in km/h (kilometers per HOUR)?

• 0.07 kilometers per hour

• 4 kilometers per hour

• 15 kilometers per hour

• 60 kilometers per hour