Ch 2 Motion Test

The horses on this carousel are accelerating because __________.

• The speed of the horse is constantly increasing.

• The speed of the horses are constantly decreasing.

• The travel time is different for every ride.

• The direction of the horses motion is constantly changing.

Tags

NGSS.MS-PS2-2

Instantaneous speed is the rate of motion at an instant in time. Based on this statement a reasonable conclusion is that if an objects instantaneous speed does not change over time, then ___________

• The object has returned to its beginning position.

• The object is quickly speeding up.

• The object is moving at a constant speed.

• The object is very gradually slowing down.

Which of these is measured in meters per second per second (m/s^2)

• Speed

• Displacement

• Acceleration

• Velocity

A group of students are playing tug of war. The students on both sides of the rope are pulling with equal forces. This is an example of

• Acceleration

• Displacement

• Balanced Forces

• Unbalanced Forces

Sometimes, people mistakenly stat that velocity and speed are the same thing. People might make such a mistake because they forget that velocity describes both speed and

• Volume

• Direction

• The time interval

• Force

Which of the following is NOT an example of unbalanced forces acting on an object?

• A car moving at a constant speed of 55 mph.

• An acorn falling from a tree.

• A truck slowing down as it approaches a red light.

• A motorcycle changing speed from 50 mph to 70 mph.

Tags

NGSS.MS-PS2-2

A sprinter runs 950 m west and 230 m east. What is her DISPLACEMENT?

• 1,180 m West

• 720 m East

• 720 m West

• 1,180 m East

Speed can be calculated by dividing distance by ____

• Velocity

• Distance

• Displacement

• Time

Tags

NGSS.MS-PS3-1

The speed of a motorcycle at a particular moment is its ____ speed

• Continuous

• Instantaneous

• Average

• Negative

Two cars are each traveling at 72 km/h. One car is traveling northeast, and the other is traveling south. The two cars have different _____

• Velocities

• Speeds

• Accelerations

• Time