PS

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

These forces are...

• Balanced

• Unbalanced

Which of the following statements is true?

• Balanced forces cause a change in motion.

• Unbalanced forces cause a change in motion.

• Forces do not effect the change in motion.

Tags

NGSS.MS-PS2-2

Students roll toy cars down the same ramp with different coverings like carpet, foil, and sandpaper. What are they trying to test?

• How does the height of a ramp affect the distance a car will roll?

• How does the mass of the car affect the distance a car will roll?

• How does the surface of a ramp affect how fast a car will travel?

• How does the surface of a ramp affect the distance a car will roll?

How is gravity affected by mass?

• the larger the mass of the object, the greater the gravity
• small objects have no gravity
• gravity is not affected by mass of objects, whether large or small

Tags

NGSS.MS-PS2-4

An airplane is travelling North through the sky at a constant speed when turbulence causes it to take a different route, changing its direction. Explain the forces at work on this plane.

• Unbalanced, because the plane is moving forward, not backwards
• Unbalanced, because the speed is constant and there is a change in direction
• Balanced, because the plane is not falling to a lower altitude
• Unbalanced, because the plane is in motion

Tags

NGSS.MS-PS2-2

Two cars are in motion for the same amount of time. What will determine which car covers more distance?

• the starting position of the each car
• the speed of each car
• the direction in which each car moves
• the length of the car

Tags

NGSS.MS-PS3-1

A weight hung from a fixed point is called a

• prediction

• observation

• pendulum

• mass

Tags

NGSS.MS-PS2-4

The chains on a swing pull back on the swing while gravity pulls it down. The swing keeps moving back and forth because the forces are ________.

• strong

• weak

• balanced

• unbalanced

Tags

NGSS.MS-PS2-4

Students want to study how water waves move in their classroom. Which of the following is the most important feature in the design of their investigation?

• Getting salt to dissolve in water

• Always using the same amount of water

• Making water move in regular patterns

• Building scale models of boats

Tags

NGSS.MS-PS4-1