1. Which of the following is not true about force?
A force can be seen directly.
2. What is the strength of a force measured in?
Newtons
3. Which of the following types of force slows down and stops moving objects?
Frictional force
4. Which of the following is an instrument used to measure force?
Spring balance
5. What is the name of the single force that is used to represent the combined effect of two or more forces in magnitude and direction?
Net force
6. Two forces are acting on a box as in Figure 1.
27 N to the left
7. Two forces are acting on a bow as in Figure 2.
If the resultant force is 10 N to the what is F?
8. F1, F2 and F3 are forces with the same magnitude acting on a toy car. Which of the following shows the maximum resultant force acting on the toy car?
A
9. A cart is being pulled to the left by a force of 120 N and another force of 150 N is pulling it to the right. What is the resultant force acting on the cart?
30 N to the right
10. Figure 3 shows the Zack pushes a heavy cupboard with a force of 300 N, but the cupboard does not even move.
C
11. A stationary box placed on the floor is acted upon by two forces, F1 and F2 as shown in figure 4.
C
1. Three forces of 2 N, 6 N and 10 N are acting on an object in a straight line. Which of the following resultant forces is not possible?
9 N
1. An object is moving with Zero resultant force. Which of the following inference is true?
Its velocity is constant.