Science STAAR Physics

The combination of all of the forces acting on an object is called ________________________.

• Unbalanced Force
• Net Force
• Balanced Force
• Force

Tags

NGSS.MS-PS2-2

If the forces acting on a moving object are balanced, what will the object do?

• The object will remain motionless.

• The object will travel in the direction of the greater force.

• The object will travel in the same direction at the same velocity.

• The object will travel in the opposite direction at the same velocity.

• The object will slow down to a stop.

Tags

NGSS.MS-PS2-2

If the forces acting on an object at rest are balanced, what will the object do?

• The object will travel in the direction of the greater force
• The object will remain at rest
• The object will travel in the direction of the opposite force
• The object will remain at test

Force is measured in:

• Newtons
• Jewels
• Joules
• Fig Newtons

How does friction affect the speed of a moving object?

• Friction speeds up the motion of the objects
• Friction slows down the motion of objects

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

• 16 N
• 14 N
• 15 N
• 17 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A student applies 2 Newtons of force to a toy car causing it to accelerate at a rate of 10 m/s2. What is the mass of the toy car in kg? 

• 2 kg
• .2 kg
• .02 kg

Tags

NGSS.MS-PS2-2

What is speed?

• Speed is the time traveled in a certain distance
• Speed is the distance an object travels in a given amount of time
• Speed is the total distance and direction

Which of the following is an example of velocity?

• 15 m/s downhill
• 15 mph 
• A flock of geese flying at 55 mph
• A rollercoaster slowing down as it travels uphill

Tags

NGSS.MS-PS3-1

Which of the following is an example of acceleration?

• A rollercoaster slows down as it travels uphill
• A cyclist travels 40 kilometers in 2 hours
• A flock of geese flies north at 55 mph 
• An athlete can run about 12.5 km/hr