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Gravity
Weight
g = wt/m
wt = mg
m = wt/g
100
What is a Newton? a. unit for weight b. unit for mass c. unit for gravity
What is a. unit for weight
100
When opposite poles of two magnets are brought together, the poles a. attract each other. b. repel each other. c. cancel each other.
What is a. attract each other.
100
If you weigh 500 N and have a mass of 50 kg what the gravity on this planet? a. .1 m/s2 b. 30 m/s2 c. 10 m/s2
What is c. 10 m/s2
100
What is the weight of an person on earth (9.8 m/s2) with a mass of 456 kg a. 4445.98 N b. 3456.12N c. 4468.8 N
What is c. 4468.8 N
100
What is the mass of an object that weighs 32 N on the planet earth (9.8 m/s2)? a. 3.26 kg b. 1.54 kg c. 2.54 kg
What is a. 3.26 kg
200
What is the primary cause of Earth’s ocean tides? a. Sun b. Earth c. Moon
What is c. Moon
200
What is the gravity on the planet earth? a. 9.8 b. 9.8 m/s c. 9.8 m/s2
What is c. 9.8 m/s2
200
If you weigh 0 N and have a mass of 0 kg what the gravity on this planet? a. 0 m/s2 b. 23 m/s2 c. 234 m/s2
What is a. 0 m/s2
200
What is the weight of an person on earth (9.8 m/s2) with a mass of 1 kg a. 98 N b. .98 N c. 9.8 N
What is c. 9.8 N
200
What is the mass of an object that weighs 459.9 N on the planet earth (9.8 m/s2)? a. 42.45 kg b. 25.8 kg c. 46.92 kg
What is c. 46.92 kg
300
The gravitational force between two objects increases as mass a. decreases or distance decreases. b. decreases or distance increases. c. increases or distance decreases.
What is c. increases or distance decreases.
300
Your weight equals your a. mass. b. mass divided by the net force acting on you. c. mass times the acceleration due to gravity.
What is c. mass times the acceleration due to gravity.
300
If you weigh 50 N and have a mass of 23 kg what the gravity on this planet? a. 217.88 m/s2 b. 231.45 m/s2 c. 2.17 m/s2
What is c. 2.17 m/s2
300
What is the weight of an person on earth (9.8 m/s2) with a mass of 15.76 kg a. 154.44 N b. 143.98 N c. 155.76 N
What is a. 154.44 N
300
What is the mass of an object that weighs 17.1 N on the planet earth (9.8 m/s2)? a. 1.74 kg b. 2.98 kg c. 1.87 kg
What is a. 1.74 kg
400
The force of gravity acting on an object is the object’s ____________________. a. Weight b. Mass c. Volume
What is a. Weight
400
As an astronaut travels far away from Earth, her weight a. decreases because gravity decreases. b. decreases because her mass decreases. c. increases because gravity increases.
What is a. decreases because gravity decreases.
400
If you weigh 5000 N and have a mass of 223 kg what the gravity on this planet? a. 21.76 m/s2 b. 22.42 m/s2 c. 2.17 m/s2
What is b. 22.42 m/s2
400
What is the weight of an person on earth (9.8 m/s2) with a mass of 41.98 kg a. 411.40 N b. 410.23 N c. 423.21 N
What is a. 411.40 N
400
What is the mass of an object that weighs 1232 N on the planet earth (9.8 m/s2)? a. 123.7 kg b. 1264.8 kg c. 125.71 kg
What is c. 125.71 kg
500
The gravity on the surface of Mars is about one-third the gravity on Earth’s surface. The weight of a space probe on the surface of Mars is about a. nine times greater than its weight on Earth’s surface b. three times greater than its weight on Earth’s surface. c. one-third its weight on Earth’s surface.
What is c. one-third its weight on Earth’s surface.
500
The standard metric unit for mass is _____ and the standard metric unit for weight is _____. a. kg, N b. N, kg c. m/s, N
What is a. kg, N
500
If you weigh 10 N and have a mass of 1.2 kg what the gravity on this planet? a. 22.42 m/s2 b. 8.33 m/s2 c. 6.33 m/s2
What is b. 8.33 m/s2
500
What is the weight of an person on earth (9.8 m/s2) with a mass of 1768 kg a. 17326.4 N b. 2134.09 N c. 1756.34 N
What is a. 17326.4 N
500
What is the mass of an object that weighs 319.76 N on the planet earth (9.8 m/s2)? a. 33.43 kg b. 32.62 kg c. 21.65 kg
What is b. 32.62 kg