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Weight and Force Calculation

Total questions: 10

Worksheet time: 21mins

Name
Class
Date
1.
A 48.8 kg skater pushed by a friend accelerates 5.1 m/s2.  How much force did the friend apply?
a)
250 kgm/s2
b)
9.6 N 
c)
9.6 kgm/s2
d)
248.9 N
2.
A force of 123.4 N is applied to an object that accelerates at a rate of .05 m/s2.  What is the mass of the object?
a)
16.17 Nm/s2 
b)
246.8 kg
c)
2468 kg
d)
16 kg
3.

Two classes are playing tug of war. Mr. Brown's class pulls to the left with a force of 45 N. Mr. White's class pulls to the right with a force of 50 N. What is the net force? What is the direction of the force? Who won?

a)

5N... right...Mr. White's class won.

b)

5N...left... Mr. Brown's class won.

c)

95N... left... Mr. Brown's class won.

d)

95N... right... Mr. White's class won.

4.
A 5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object. 
a)
6.4 N
b)
6.4 m/s2
c)
6.4 kg
d)
6.4 kgm/s2
5.
What is the acceleration of a 59.2 kg object pushed with a force of 500.6 newtons?
a)
8.5 kgm/s2
b)
29, 635.5 m/s2
c)
8.5 m/s2
d)
29,635.5 N/kg
6.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  
a)
The one with a mass of 0.78 kg will have the greatest acceleration.
b)
The one with a mass of 0.52 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
d)
Neither one will accelerate.  
7.

A child has a mass of 30 Kg. If the force of gravity on the moon is 1.6 m/s2 , then what is the weight of the child on the moon?

a)

48 N

b)

18.75 N

c)

48 Kgm/s2

d)

0.1 Kgm/s2

8.

The force of gravity on Jupiter is 2 times the gravitational force on Earth. If an object has a mass of 50 kg and a weight of 490 N on Earth, what would be the object's approximate mass and weight on Jupiter?

a)

50 kg and 490 N

b)

100 kg and 490 N

c)

50 kg and 980 N

d)

100 kg and 980 N

9.
A person would weigh less on on the Moon than on the Earth because . . .
a)
Moon has more mass, and therefore more gravity
b)
Moon has less mass, and therefore more gravity
c)
Moon has more mass, and therefore less gravity
d)
Moon has less mass and therefore less gravity
10.

The weight of a boulder on Neptune is 2,960 Newtons. The boulder has a mass of 269 kilograms. What is the acceleration due to gravity on Neptune?

a)

0.1 m/s2

b)

8.9 m/s2

c)

796, 240 m/s2

d)

11 m/s2