Welcome to the Quiz!

This quiz contains 10 questions from a mix of 1 subtopics.

Diagram showing an airplane with arrows indicating lift, weight, air resistance, and thrust forces.

forces / direction / magnitude / type


Free body diagrams use arrows to show all of the acting on an object. 


The length of each arrow indicates the of that force.


The direction of each arrow indicates the of the force.

forces
magnitude
direction

0

/

3

The force is the overall force acting on an object, taking into account all the different forces acting on it.

resultant

0

/

1

Forces acting in opposite directions on the same object can 'cancel out'.


During take-off, a plane has a lift force (upwards force) of 690,000 N and a weight (downwards force) of 600,000 N.


What is the resultant force acting on the plane?

90,000 N upwards

1.15 N upwards

1.15 N downwards

90,000 N downwards

0

/

1

A resultant force acts upon an object.


Which two properties might be affected by that resultant force?

Density and speed

Direction and mass

Speed and direction

Direction and temperature

0

/

1

Diagram showing a pink cube with a 20N force acting to the left and a 10N force acting to the right.

What will be the resultant force acting upon this object?

(force arrows are not drawn to scale)

10 N to the right

0 N - no resultant force

20 N to the right

10 N to the left

10 N to the left

0

/

1

Diagram showing a box with force arrows of 5N and 30N acting on it.

What will be the resultant force acting upon this object?

(force arrows are not drawn to scale)

30 N to the left

25 N to the right

2 N to the right

25 N to the left

0 N - no resultant force

0

/

1

Diagram showing a blue cube with force arrows labeled 60N to the right, 45N to the left, and 15N to the left.

What will be the resultant force acting upon this object?

(force arrows are not drawn to scale)

60 N to the right

60 N to the left

15 N to the left

45 N to the left

0 N - no resultant force

0

/

1

If all the forces acting on an object balance out, then we say that the object is in:

Equilibrium

Motion

Freefall

0

/

1

Diagram of a train with forces acting on it in equilibrium showing 1700 N to the left and 900 N to the right with a missing force.

The train above is travelling at a constant velocity because the forces acting on it are in equilibrium. 


Therefore, the missing force must have a magnitude of newtons to the .

800
right

0

/

2

A train is travelling at a constant velocity along a flat railway. Three horizontal forces act on the train, two of which are shown on the diagram above.

(force arrows are not drawn to scale)


The size of the third force is  N, and the direction of the third force is to the .

1200
left

0

/

2