Force and Motion

Multiple Choice

What is the speed of a train that travels 120 miles in 1.5 hours?

• 180 kilometers per hour

• 180 miles per hour

• 80 miles per hour

• 80 kilometers per hour

Multiple Choice

What is the speed of a horse that runs 300 meters in 20 seconds?

• 15 meters per second

• 15 miles per hour

• 600 meters per second

• 20 meters per second

Open Ended

Which pair of arrows show when the boat’s velocity and acceleration have the same direction?

Open Ended

How is velocity different than speed?

Multiple Choice

A student is investigating acceleration and force.

The student rolls five balls of different masses

and records her observations in the table shown.What claim can the student make using this

data?

• The acceleration of an object is dependent on its

  mass.

• The mass of an object is directly proportional to

  its acceleration.

• The acceleration of an object decreases as the

  mass of an object increases.

• The amount of force required to accelerate an

  object is proportional to its mass.

Multiple Choice

Assuming the force acting on the object is equal,

which claim about inertia and acceleration can be

supported by the data collected by the student?

• An object with a lower mass has less inertia

  which causes acceleration to decrease.

• An object with a higher mass has more inertia

  which causes acceleration to decrease.

• An object with a lower mass has more inertia

  which causes acceleration to increase.

• An object with a higher mass has less inertia

  which causes acceleration to increase.

Multiple Select

What affect do unbalanced forces have on an object? CHOOSE 3

• Changes the speed of the object

• Changes direction of an object

• Changes position of an object

• nothing

Open Ended

Out of the four balls shown below, if the distance between them was kept the same, which two balls would have the weakest gravitational force? The strongest gravitational force? Why?

Open Ended

List the three main types of friction we discussed in class and give an example of each from your life experiences.

Multiple Choice

Which type of friction is shown in the picture?

• fluid

• static

• rolling

• sliding

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident