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Forces
Test Description: Basic review of force, gravity, friction, mass, and speed.
Instructions: Answer all questions to get your test result.
1) What is a force?
A
when an object changes its speed
B
how many pieces matter in an object
C
how fast an object is moving
D
a push or pull that changes how an object moves
2) What force is trying to pull a rocket back to Earth?
A
magnetism
B
electricity
C
gravity
D
friction
3) What force keeps the Earth orbiting around the sun?
A
electricity
B
gravity
C
magnetism
D
friction
4) What is gravity?
A
how fast an object is moving
B
how many pieces of matter in an object
C
a foces that slows down or stops moving objects
D
a force that pulls you to the Earth and pulls planets around the sun
5) A boy sits on the grassy side of a hill. Instead of sliding down the hill, he is able to stay in one place. What force keeps him from sliding down the hill?
A
magnets
B
glue
C
friction
D
gravity
6) Mr. Fields puts sand on an icy road in the winter. How does this help him drive on the road? Hint: Bumpy things like sand make more friction.
A
The sand increases (makes more) friction between the road and the tires of a car.
B
The sand decreases (makes less) friction between the road and the tires of a car.
7) Which surface will most likely cause a rolling ball to slow down the quickest? Hint: Bumpy things like sand make more friction.
A
ice
B
grass
C
sandpaper
D
tile
8) Yaslin runs 1500 meters around the school track. What does she need to know in order to find out her speed?
A
her time from start to finish
B
the number of steps she took
C
her heart rate at the finish line
9) What is friction?
A
a force that slows down or stops an object from moving
B
a force that pulls you to the Earth and pulls planets around the sun
C
when an object changes its speed
D
how many pieces of matter in an object
10) Yaslin pushed four toy cars with the same amount of force across a desk. Which toy car would most likely accelerate the slowest?
A
a car with a mass of 15 grams
B
a car with a mass of 25 grams
C
a car with a mass of 20 grams
D
a car with a mass of 60 grams
11) Alex launched two rockets with the same amount of force. Which rocket will go the shortest distance? Look at the mass of the rockets.
A
Rocket 1 - 500 grams
B
Rocket 2 - 100 grams
12) Ahmed has four solid balls. Which ball needs the most force to move it?
A
the ball with a mass of 25 kg
B
the ball with no mass
C
the ball with a mass of 5 kg
D
the ball with a mass of 15 kg
13) How does the mass of an object affect the acceleration of the object?
A
The greater the mass of an object, the greater the force needed to accelerate it.
B
The greater the mass of an object, the smaller the force needed to accelerate it.
14) What is mass?
A
how many pieces of matter in an object
B
how fast or slow an object moves
C
a force that slows down or stops an object from moving
D
a force that pulls you to the Earth and pulls planets around the sun
15) Salman kicks two soccer balls the same distance. Ball X travels the distance in 5 seconds. Ball Y travels the distance in 14 seconds. Which statement is true?
A
Ball Y travels faster than Ball X
B
Ball X travels faster than Ball Y
C
Both balls travel at the same speed
16) What is speed?
A
how many pieces of matter in an object
B
a force that pulls you to the Earth and pulls planets around the sun
C
how fast or slow an object moves
D
a force that slows down or stops an object from moving
17) Five students ran a 50-yard race. Sheriff finished the race in 21 seconds. Aya finished in 22 seconds. Salman finished in 16 seconds. David finished in 34 seconds. Jose finished in 21 seconds. Who won the race?
A
Sheriff
B
Salman
C
Aya
D
David
18) What was the average speed of a car that traveled 180 miles in 2 hours? Speed = distance ÷ time
A
45 mph
B
90 mph
C
30 mph
D
180 mph
19) An airplane moving at 500 miles per hour from Greensboro to New York. The distance is 4000 miles. How many hours will the plane travel? time = distance ÷ speed
A
10 hours
B
1 hour
C
36 hours
D
8 hours
20) If a train travels west at 85 mph for 4 hours. What distance will the train travel? distance = speed x time
A
340 miles
B
360 miles
C
84 miles
D
40 miles
*select an answer for all questions
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