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Physics Unit 4: Tuning Effect of Forces 4.1 Quiz

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Physics Unit 4: Tuning Effect of Forces 4.1 Quiz

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Questions and Answers

What are parallel forces?

Forces that act on the same object

Forces that are parallel to each other and have the same direction (correct)

Forces that are in opposite directions

Forces that act perpendicular to each other

In what direction are unlike parallel forces acting?

In the same direction

Opposite to each other (correct)

Perpendicular to each other

Parallel to each other

Why do many people push a bus in the same direction to start it?

To create unlike parallel forces

Due to the perpendicular forces applied

Because the forces applied are parallel and in the same direction (correct)

To create tension in the bus

What is the main cause of the bag's weight in figure 4.3?

The weight of the apples in it Signup and view all the answers

What type of forces are weight and tension in the context of figure 4.4(a)?

Unlike parallel forces Signup and view all the answers

What are forces called when they are parallel to each other and have the same direction?

Like parallel forces Signup and view all the answers

What is the term for a single force that has the same effect as the combined effect of all the forces it replaces?

Resultant force Signup and view all the answers

What type of forces are F and F₂?

Non-parallel and opposite forces Signup and view all the answers

What is a body composed of a large number of particles called?

Rigid body Signup and view all the answers

What is the line about which a rigid body rotates called?

Axis of rotation Signup and view all the answers

Which term refers to the turning effect of a force?

Torque or moment of a force Signup and view all the answers

Why is the handle of a door fixed near the longer edge of the door?

To increase the torque applied on the door Signup and view all the answers

What factors does torque or moment of a force depend on?

Distance from the axis of rotation and direction of force Signup and view all the answers

In which scenario would a mechanic use a spanner with a longer arm?

To loosen a tightly fastened nut Signup and view all the answers