How to Make Your Own Force Meter

Most apples weigh 1 Newton each.
••• Jupiterimages/ Images

Force meters measure the weights of different masses. You can make a force meter with a few household objects. This activity is useful in classroom and home school environments. Ask students to make predictions about the mass of different objects. The students weigh the items and determine if their predictions are accurate. Students weigh each object and record the weight in Newtons, e.g. one medium apple weighs approximately 1 Newton.


    Measure a piece of cardboard and cut it into a rectangle with 4-cm by 8-cm dimensions. Cut a second piece of cardboard into a 2-cm by 2-cm square and set aside.

    Lay the rectangle on a flat surface and use tacks or a stapler to attach the elastic band to one side. When you hold the force meter upright, the band will hang down.

    Form the paper clip into a "hook" shape on one end. The top of the paper clip remains the same.

    Attach the top of the paper clip to the bottom of the elastic band. The "hook" will hang down.

    Draw an arrow on the 2-cm by 2-cm square.

    Poke the hook of the paperclip through the smaller cardboard square.


    Hang a large piece of poster board on the wall. Use this for a chart to measure Newtons.

    Hold your meter upright, standing by the poster board to calibrate it. Do not place any masses on the meter.

    Look where the arrow points on the poster board and use a pen to mark this location. Label this "0 N" to represent 0 Newtons.

    Add an object that weighs 1 Newton to the force meter. Assess where it falls on the poster board and mark this as "1 N" for 1 Newton. Continue measuring and marking for 2 through 5 Newtons.

    Measure unknown masses and determine how many Newtons each object weighs.

    Things You'll Need

    • Cardboard
    • Scissors
    • Elastic or rubber band
    • Stapler or tacks
    • Paper clips
    • Pen
    • Poster board
    • Multiple known masses
    • Multiple unknown masses


    • Record predictions and results on a separate sheet of paper.

Related Articles

How to Convert Newtons Into Mass
Difference Between Spring Scale & Beam Scale
How to Calculate Pendulum Force
How to Find Mass in Weight
How to Calculate Work Input in a Pulley
How to Calculate Load Force
How to Convert a Newton Meter to Foot-Pounds
How to Convert Density to Force per Cubic Meter
How to Calculate Velocity From Force & Distance
How to Calculate Catapult Force
Science Projects on Newton's Second Law of Motion
Fifth Grade Activities on Force & Motion
How to Calculate Mechanical Leverage
How to Find the Inertia of an Object
How to Calculate a Change in Momentum
How to Calculate Overturning Moment
How to Calculate Weight Per Linear Foot
What Are Some Examples of the Laws of Motion?