Hooke's Law Calculations

A force of 470 N is applied to stretch a spring which has a spring constant, k=1100 N/m.  How much does the spring stretch past its free length?

• 0.214 m
• 2.34 m
• 0.427 m
• 5.17 X 10^5 m

A 25,000 N Car is supported by 4 springs.  If each spring is deflected by 0.040 m what is the spring constant? 

• 160,000 N /m
• 620,000 N/m
• 630,000 N/m
• 120,000 N/m

Tags

NGSS.HS-PS2-1

Which of the following springs is the stiffest?

• A spring that requires a froce of 2000 N to compress it by 6.8 m.
• A spring that requires a force of 4000 N to stretch it by 9.0 m. 
• A spring that requires a force of 8000 N to compress it by 45 m.  
• A spring that requires a force of 4800 N to stretch it by 14 m.

If extension = Stretched length - original length. What is the extension of spring D.

• 1mm
• 2mm
• 3mm
• 0mm

A force of 1.2 N is applied to a spring with spring constant 60 N/m. Calculate the extension of the spring. Give your answer in centimetres.

(a)  

What is the best description of the relationship shown in this graph?

• In this graph, the relationship between force and extension is linear.

• In this graph, the relationship between force and extension is non-linear.

• In this graph, the relationship between force and extension is directly proportional.

• In this graph, there is no relationship between force and extension.

What is the best description of the relationship shown in this graph?

• In this graph, the relationship between force and extension is linear.

• In this graph, the relationship between force and extension is non-linear.

• In this graph, the relationship between force and extension is directly proportional.

• In this graph, there is no relationship between force and extension.

What is the best description for this graph? Tick all the statements you agree with:

• The start of this graphs shows that force and extension are non-linear.

• The start of this graphs shows that force and extension are directly proportional.

• After approximately 4N, force and extension are non-linear.

• After approximately 4N, force and extension are directly proportional.

The data in the graph represents the extension of a spring. Calculate the spring constant

• 2 N/m

• 0.5 N/m

• 60 N/m

• 20 N/m

[Level 6+ Question] Looking at the graph, at what point does this spring stop obeying Hooke's law:

• 10N

• 15N

• 20N

• It is always obeying Hooke's law