Forces and Speed STAAR Bootcamp W6

As long as the force acts on the object, the object will continue to move toward the east and its velocity will increase by (a)   m/s every second.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which two carts experience the same net force?

• Carts 1 and 2

• Carts 2 and 3

• Carts 1 and 3

• Carts 2 and 4

Tags

NGSS.MS-PS2-2

A sledgehammer has a mass of 3.5 kilograms. What net force, to the nearest whole newton, will a person need to apply to accelerate the sledgehammer at a rate of 4.0 m/s²?

(a)  

Tags

NGSS.MS-PS2-2

A toy truck is at rest on the floor. Which statement describes the forces acting on the toy truck?

• The forces are balanced so motion occurs.

• The forces are balanced so no motion occurs.

• The forces are unbalanced so motion occurs.

• The forces are unbalanced so no motion occurs.

A student is pushing two blocks on a smooth, frictionless surface.

What force is required in order to produce an acceleration of 2.5 m/s²?

• 12 N

• 30 N

• 50 N

• 75 N

Tags

NGSS.MS-PS2-2

A block is pulled 0.90 m to the right in 2.5 s.

What is the block's average speed to the nearest hundredth of a m/s?

(a)  

The distance a toy car travels over time is shown in the graph.

Which table best shows the average speed of the toy car at different time intervals?

• 
• 
• 
• 

Tags

NGSS.MS-PS3-1

A horse trainer records the distance a horse travels during three different trials.

What is the horse's average speed in kilometers per minute?

(a)  

Tags

NGSS.MS-PS3-1

Two students record the distance they traveled in 60 seconds in the data table shown.

If the students continue at the same speed, which statement describes the total distance traveled after 90 seconds?

• Student 1 traveled 40 m, and student 2 traveled 20 m.

• Student 1 traveled 50 m, and student 2 traveled 30 m.

• Student 1 traveled 60 m, and student 2 traveled 30 m.

• Student 1 traveled 70 m, and student 2 traveled 25 m.

The table shows the motion data for two objects during two trials of an investigation.

Which object travels at the greater average speed?

• Object 1, because it travels the greater distance per unit of time

• Object 1, because it travels the longer amount of time

• Object 2, because it travels the shorter amount of time

• Object 2, because it travels the shorter distance per unit of time

Tags

NGSS.MS-PS3-1