Science Unit 1 Review Question Preview (ID: 44856)


Science Unit 1 Review. TEACHERS: click here for quick copy question ID numbers.

What is a push or pull of an object?
a) motion
b) friction
c) force
d) gravity

Why is it harder for the boy in image B to get down the hill?
a) motion
b) work
c) friction
d) displacement

Which force produces a change in motion
a) balanced force
b) gravitional force
c) unbalanced force
d) frictional force

If 2 equal forces (force A and force B) are pulling in opposite directions, what will happen?
a) force A will overcome force B
b) force B will overcome force A
c) the object will not move
d) the object's movement will be overcome by friction

______________ is how fast an object changes over time
a) speed
b) momentum
c) velocity
d) acceleration

What is the formula for force?
a) F=M/A
b) F=M*A
c) F=A/M
d) F=M*F

What happens when 2 forces act in the same direction?
a) They cancel each other out
b) The stronger one prevails
c) Their strengths are added
d) Their sum divided by the 2 is the total force

Any time the forces are unbalanced, an object will remain at rest. True of False?
a) True
b) False
c)
d)

When you tell the direction and speed of an object, you give its
a) motion
b) acceleration
c) mass
d) velocity

Force A (10 Newtons) is pulling an object up. Force B (5 Newtons) is pulling the same object down. What is the net force?
a) 5 Newtons up
b) 15 Newtons up
c) 5 Newtons down
d) 15 Newtons down

Which of the following statements is true?
a) Balanced forces cause a change in motion
b) Forces do not effect the change in motion
c) Unbalanced forces cause a change in motion
d)

A flat line on a Distance/Time graph represents what?
a) Constant speed
b) Not moving
c) Acceleration
d)

If a 10 kg object accelerates suddenly at 15 m/s2, how much force was applied to the object?
a) 100 kg
b) 150 kg
c) 15 Newtons
d) 150 Newtons

A baseball is thrown a distance of 50 meters. What is the speed if it takes 2 seconds to cover that distance?
a) 100 m/s2
b) 52 m/s2
c) 25 m/s2
d) 100 seconds

Which of the following objects has the least acceleration?
a) an empty shopping cart pushed with a hard force
b) an empty shopping cart pushed with a light force
c) a full shopping cart pushed with a hard force
d) a full shopping cart pushed with a light force

Speed is equal to
a) Time x distance
b) Distance/time
c) Time/Distance
d) Acceleration

Speed is different from velocity because
a) Velocity doesn't include time
b) Speed uses distance/time
c) Velocity has a direction
d) Velocity doesn't include distance

8 Newtons to the left and 4 Newtons to the right. Find the net force. Is this balanced?
a) 12 N Right No
b) 12 N Right Yes
c) 4 N Left No
d) 4 N Left Yes

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