Net Force
What do you call the total of all forces acting on an object?
Net force
What is the net force when forces are balanced?
0 N
What two quantities are multiplied to calculate force?
Mass and acceleration
What formula is used to calculate speed?
Speed = Distance ÷ Time
What force slows objects moving across a surface?
Friction
Two forces of 6 N act in opposite directions. What is the net force?
0 N
An object is not changing speed or direction. Are the forces balanced or unbalanced?
Balanced
What is the force on a 5 kg object accelerating at 2 m/s²?
10 N
An object travels 20 meters in 4 seconds. What is its speed?
5 m/s
A box is pushed right with 15 N. Friction pushes left with 9 N. What is the net force?
6 N to the right
A box is pushed with 10 N right and 4 N left. What is the net force and direction?
6 N to the right
A book resting on a table has gravity downward and normal force upward. Are the forces balanced?
Yes, the forces are balanced
If the force is 0 N, what must the acceleration be?
0 m/s²
If an object moves at 5 m/s for 10 seconds, how far does it travel?
50 meters
Why does a car speed up when the engine force is greater than friction?
Because the forces are unbalanced
When the net force on an object is NOT zero, what happens to the object’s motion?
The object accelerates (changes speed or direction)
What type of forces cause an object to accelerate?
Unbalanced forces
A 10 kg object accelerates at 3 m/s². What is the force?
30 N
An object travels 100 meters at a speed of 10 m/s. How long does it take?
10 seconds
A rocket pushes upward with 900 N while gravity pulls down with 850 N. What happens?
The rocket accelerates upward
A sled has forces of 12 N right, 3 N right, and 5 N left. What is the net force and direction?
10 N to the right
A cart has equal forces pushing left and right but is already moving. What happens to its motion?
It continues moving at a constant speed
A force of 24 N acts on a 6 kg object. What is the acceleration?
4 m/s²
Two students race. One runs 50 m in 10 s. The other runs 50 m in 5 s. Who is faster and why?
The second student, because they have a greater speed
Explain how net force, force formula, and speed are connected in real-life motion.
Net force causes acceleration, force depends on mass and acceleration, and acceleration changes speed