Forces
Which of the following is a type of force?
A. Gravity
B. Energy
C. Heat
D. Light
A. Gravity
Motion is a change in an object’s:
A. Temperature
B. Mass
C. Position
D. Shape
C. Position
Balanced forces will cause an object to:
A. Speed up
B. Stay still or keep moving the same
C. Change direction
D. Fall down
B. Stay still or keep moving the same
Which is a simple machine?
A. Toaster
B. Pulley
C. Battery
D. Engine
B. Pulley
Which force pulls objects toward Earth?
A. Gravity
B. Friction
C. Speed
D. Air
A. Gravity
What kind of force slows things down?
A. Push
B. Pull
C. Friction
D. Gravity
C. Friction
Which object is most likely to move the fastest?
A. A car
B. A bicycle
C. A person walking
D. A turtle
A. A car
Unbalanced forces cause:
A. No movement
B. No friction
C. A change in motion
D. Equal weight
C. A change in motion
A ramp is another name for:
A. Wedge
B. Screw
C. Inclined Plane
D. Lever
C. Inclined Plane
A sled moves down a snowy hill. What force is helping it move?
A. Friction
B. Magnetism
C. Gravity
D. Electricity
C. Gravity
Which of these is a contact force?
A. Gravity
B. Friction
C. Magnetism
D. Electricity
B. Friction
What tool can measure how far something moves?
A. Thermometer
B. Ruler
C. Balance
D. Stopwatch
B. Ruler
Two kids are pushing a box with the same force from opposite sides. What happens?
A. The box tips over
B. The box moves fast
C. The box stays still
D. The box spins
C. The box stays still
Which simple machine helps you lift a bucket from a well?
A. Pulley
B. Wedge
C. Lever
D. Screw
A. Pulley
What happens if you remove friction from a surface?
A. Things speed up
B. Things stop
C. Gravity stops working
D. Things melt
A. Things speed up
A magnet pulls a paperclip toward it. What kind of force is that?
A. Gravitational
B. Frictional
C. Magnetic
D. Mechanical
C. Magnetic
Which example shows a change in direction?
A. A ball rolling in a straight line
B. A toy car moving faster
C. A bike turning a corner
D. A truck slowing down
C. A bike turning a corner
Which of these shows unbalanced forces?
A. A book sitting on a desk
B. A car speeding up
C. A person sleeping
D. A hanging picture frame
B. A car speeding up
A knife is an example of which simple machine?
A. Pulley
B. Screw
C. Wheel and axle
D. Wedge
D. Wedge
A door hinge is an example of:
A. Pulley
B. Lever
C. Screw
D. Wedge
B. Lever
Which force keeps you from sliding off your chair?
A. Gravity
B. Inertia
C. Friction
D. Acceleration
C. Friction
If two objects move the same distance but one is faster, what is different?
A. Shape
B. Force
C. Speed
D. Friction
C. Speed
What happens if unbalanced forces act on an object?
A. Nothing
B. It floats
C. Its motion changes
D. It disappears
C. Its motion changes
Which two simple machines make up a wheelbarrow?
A. Pulley and wedge
B. Lever and wheel & axle
C. Screw and wedge
D. Inclined plane and screw
B. Lever and wheel & axle
Two people push a box in the same direction. The box speeds up. What kind of forces are acting?
A. Balanced
B. Opposite
C. Unbalanced
D. Magnetic
C. Unbalanced