Use the drawing below to answer the following question.
All of the boxes shown above can slide easily. Which box will move farthest if each is struck with the same amount of force?
the 1-kg box
the 10-kg box
the 20-kg box
the 50-kg box
Two forces act on the 2 kg box shown below.
A 4 N force acts to the right and a 6 N force acts to the left. What is the net force acting on the box?
10 N to the right
10 N to the left
2 N to the right
2 N to the left
A hot air balloon exerts a force of 1200 N while lifting a load of 800 N. Which free-body force diagram depicts the forces involved?
An object is moving in a straight line at a constant speed.
What will happen to the object if no outside force acts on the object?
The speed and direction of the object will change.
The speed and direction of the object will not change.
The direction of the object will change; the speed will remain constant.
The speed of the object will change; the direction will remain constant.
Kara pushes her big brother on a swing at the playground. After he gets off the swing, her little brother gets on. Kara fi nds that it is easier to push her little brother than it was to push her big brother. What is the most likely reason for this?
A smaller mass always moves faster than a larger mass.
A smaller mass always moves slower than a larger mass.
Less force is needed to move a larger mass the same distance.
More force is needed to move a larger mass the same distance.
This diagram shows an object being pushed along a frictionless surface. The object accelerates at 2 m/s²
What force was applied to the object?
1 N
1.5 N
5 N
6 N
A 50-kg child on a skateboard experiences a 75-N force as shown.
What is the expected acceleration of the child?
0.67 m/s²
1.5 m/s²
25 m/s²
3750 m/s²
If each horse is pulling with the same force, in which direction will the rock move?
north
east
south
west
A student in a lab experiment jumps upward o a common bathroom scale as the lab partner records the scale reading.
What does the lab partner observe during the instant the student pushes off ?
The scale reading will remain unchanged during the entire time the student is in contact with the scale.
The scale reading will increase momentarily then will decrease as the student is moving upward from the scale.
The scale reading will increase during the entire time the student is in contact with the scale.
The scale reading will decrease momentarily then will increase as the student is moving upward from the scale.
