Motion Test

What is the definition of inertia?

• An object being too heavy to move

• The attractive forces between all things with mass

• When forces are unbalanced an object will remain stationary

• An object resistance to a change in motion

Two people are playing tug of war. Person 1 is pulling to the right with 20 N of force, the other person is pulling to left with 50 N of force. What is the Net Force and direction of the rope?

• 30 N to the left

• 30 N to the right

• 70 N to the left

• 70 N to the right

Tags

NGSS.MS-PS2-2

Two animals of different mass are falling.

What force is missing if BOTH animals fall at the exact same velocity?  

• Gravity

• Air Resistance

• Sliding Friction

• Static Friction

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Marie is standing in an elevator, which is not moving. She has stepped on a scale in the elevator and observes that the scale reads 294 N. Then, the elevator begins going up with an acceleration of 2 m/s². What will be the reading on the scale as Marie accelerates upwards?

• It will be less than 294 N, because the total force needed to accelerate her up is less than the force of gravity.  

• It will be less than 294 N, because the total force needed to accelerate her up is more than the force of gravity.

• It will be more than 294 N, because the total force needed to accelerate her up is less than the force of gravity.  

• It will be more than 294 N, because the total force needed to accelerate her up is more than the force of gravity.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Air being let out of a balloon so that it flies around the room is an example of which law?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

Tags

NGSS.MS-PS2-1

How much time would it take for an airplane to reach its destination if it traveled at an average speed of 500 km/hr for a distance of 1000 km? 

• 5000 hr

• 5 hr

• 5000 km

• 2 hr

Which letter represents a section of the graph where the object is going back towards the house?

• B

• C

• D

• E

Why does a baseball continue moving after it is hit by a baseball bat?

• Gravity will continue to move the baseball.

• Objects in motion will remain in motion in the same direction until acted on by a force.

• Friction will continue to move the baseball.

• Objects in motion will remain in motion until the force decreases.

Tags

NGSS.MS-PS2-1

How far does the object travel in 60 minutes?

• 1.5 km

• 2 km

• 2.5 km

• 3 km

Where does the sled experience an unbalanced force on this frictionless track?

• Section 1

• Section 1 and 2

• Section 2 and 4

• Section 3

Tags

NGSS.MS-PS2-2