$1$ . $13$ Figure $1$ . $30$ shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

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Grade 8

Write and solve equations that represent diagrams

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1

13

Figure

1

30

shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?

Check field direction: Look at the direction of the electrostatic field; charged particles will deflect towards or away from the field lines depending on their charge.
Determine particle charge: If a particle deflects towards the negative plate, it's positively charged; if it deflects towards the positive plate, it's negatively charged.
Compare path curvature: Compare the curvature of the paths; a particle with a higher $\frac{charge}{mass}$ ratio will have a more pronounced curve due to a stronger force for the same mass.
Identify charge signs: Identify the direction of deflection for each particle to determine their charge signs.
Compare charge ratios: Compare the curvatures to determine which particle has the highest $\frac{charge}{mass}$ ratio.