Understanding Forces and Pressure

What is the primary effect of a force on an object?

• It alters the temperature of the object.

• It changes the color of the object.

• It changes the material of the object.

• It changes the shape, size, or motion of the object.

How are forces typically represented in diagrams?

• With squares

• With circles

• With triangles

• With arrows

What happens when two equal forces act in opposite directions on an object?

• The object remains stationary.

• The object moves in the direction of the larger force.

• The object changes shape.

• The object rotates.

What is the resultant force when two forces of 3 Newtons and 2 Newtons act in opposite directions?

• 1 Newton in the direction of the smaller force

• 0 Newtons

• 5 Newtons in the direction of the larger force

• 1 Newton in the direction of the larger force

What is the relationship between force, mass, and acceleration?

• Force equals mass plus acceleration.

• Force equals acceleration divided by mass.

• Force equals mass times acceleration.

• Force equals mass divided by acceleration.

If a moving object has balanced forces acting on it, what can be said about its motion?

• It will stop immediately.

• It will continue moving at a constant speed.

• It will accelerate.

• It will change direction.

What is pressure defined as in scientific terms?

• Force divided by volume

• Force divided by area

• Area divided by force

• Volume divided by force

Why does a sharp object hurt more than a blunt one when pressed against the skin?

• Because it is heavier

• Because it is made of a harder material

• Because it has a smaller area, increasing pressure

• Because it has a larger area

What unit is used to measure pressure?

• Newtons

• Newtons per meter squared

• Joules

• Meters squared

What must be done to area measurements in exams to avoid losing marks?

• Convert them to centimeters squared

• Convert them to meters squared

• Convert them to liters

• Convert them to kilograms